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data sheet rev. 2.00 / december 201 2 zsc31 1 50 fast automotive sensor signal conditioner precise and deliberate
zsc31150 fast automotive sensor signal conditi oner for more information, contact zmdi via ssc@zmdi.com . ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 december 15, 2012. all rights reserved. the material c o ntained herein may not be reproduced, adapted, merged, translated, stored, or used without the pri or written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. brief description the zsc31150 is a cmos integrated circuit for highly accurate amplification and sensor - specific correction of bridge sensor signals. digital com - pensation of sensor offset, sensitivity, temperature drift, and non - linearity is accomplished via a n inter - nal 16 - bit risc micro controller running a correction algorithm, with calibration coefficients stored in an eeprom. the zsc31150 is adjustable to nearly all bridge sensor types. measured values are provided at the analog voltage output or at the digital zacwire ? and i2 c ? * interface. the digital interface can be used for a simple pc - c ontrolled calibration pro cedure in order to program a set of calibration coefficients into an on - chip eeprom. a specific sensor and a zsc31150 can be mated digitally: fast, precise, and without the cost overhead associated with trimming by external devices or a laser. features ? digital compensation of sensor offset, sensitivity, temperature drift, and non - linearity ? adjustable to nearly all bridge sensor types ? a nalog gain of 420, overall gain up to 2000 ? output options: ratiometric analog voltage output (5 % to 95% maximum, 12.4 - bit resolution) or zacwire ? (digital one - wire - interface) ? temperature compensation: internal or external diode, bridge resistance, thermistor ? sensor biasing by voltage or con stant current ? sample rate : up to 7.8 khz ? high voltage protection up to 33 v ? supply current : max. 5.5ma ? reverse polarity and short - circuit protection ? wide operation temperature depending on part number: up to - 40 to +150c ? traceability by user - defined eepr om entries ? s afety and diagnostic functions * i2c? is a trademark of nxp. benefits ? no external trimming components required ? only a few external protection devices needed ? pc - controlled configuration and single pass calibration via i 2 c ? or zacwire ? interface: simple, cost efficient, quick, and precise ? end - of - l ine calibration via i2c ? or zacwire ? interface ? high accuracy (0.25% fso @ - 25 to 85c; 0.5% fso @ - 40 to 125c) ? the zsc31150 is optimized for automotive environments by its special protection c ircuitry and excellent electromagnetic compatibility available support ? evaluation kit s ? application notes ? mass c alibration setup physical characteristics ? supply voltage : 4.5 to 5.5 v ? operation temperature: - 40c to 125c ( - 40c to +150c de - rated, depending on product version) ? available in ssop14 or as die zsc31150 a pplication circuit o u t v c c g n d s e n s o r m o d u l e z s c 3 1 1 5 0
zsc31150 fast automotive sensor signal conditi oner ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 december 15, 2012. all rights reserved. the material c o ntained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the c opyright owner. zsc31150 block diagram ordering informatio n (please refer to section 8 in the data sheet for additional options.) product sales code description package zsc31150 g eb zsc31150 die temperature range: - 40c to +150c unsawn on wafer zsc31150 g ec zsc31150 die temperature range: - 40c to +150c sawn on wafer frame zsc31150 g ed zsc31150 die temperature range: - 40c to +150c waffle pack zsc31150 g eg1 zsc31150 ssop - 1 4 temperature range: - 40c to +150c tube: add - t to sales code reel: add - r zsc31150kit evaluation kit v1.0 zsc31150 ssc evaluation kit: 3 interconnecting boards, 5 zsc31150 ssop - 14 samples, usb cable, software/documentation dvd kit zsc31150 mass calibration system v1.1 modular mass calibration system (msc) for zsc31150: mcs boards, cable, connectors, dvd with software and documentation kit sales and further information www.zmdi.com ssc@zmdi.com zentrum mikroelektronik dresden ag grenzstrasse 28 01109 dresden germany zmd america, inc. 1525 mccarthy blvd., #212 milpitas, ca 95035 - 7453 usa zentrum mikroelektronik dresden ag, japan office 2nd floor, shinbashi tokyu bldg. 4 - 21 - 3, shinbashi, minato - ku tokyo, 105 - 0004 japan zmd far east, ltd. 3f, no. 51, sec. 2, keelung road 11052 taipei taiwan zentrum mikroelektronik dresden ag, korea office u - space 1 building 11th floor, unit ja - 1102 670 sampyeong - dong bundang - gu, seongnam - si gyeonggi - do, 463 - 400 korea phone +49.351.8822.7.772 fax +49.351.8822.8.7772 phone +855.275.9634 (usa) phone +408.883.6310 fax +408.883.6358 phone +81.3.6895.7410 fax +81.3.6895.7301 phone +886.2.2377.8189 fax +886.2.2377.8199 phone +82.31.950.7679 fax +82.504.841.3026 disclaimer : this information applies to a product under development. its characteristics and specifications are subject to change without noti ce. zentrum mikroelek tronik dresden ag (zmd ag) assumes no obligation regarding future manufacture unless otherwise agreed to in w riting. the information furnished hereby is believed to be true and accurate. however, under no circumstances shall zmd ag be liable to any customer, licensee, or any other third party for any special, indirect, incide ntal, or consequential damages of any kind or nature whatsoever arising out of or in any way related to the furnishing, performance, or use of this technical data. zmd ag hereby expressly d isclaims any liability of zmd ag to any customer, licensee or any other third party, and any such custome r, licensee and any other third party hereby waives any liability of zmd ag for any damages in connection with or arising out of the furnishing, performance or use of this technical data, whether based on contract, warranty, tort (including negligence), st rict liability, or otherwise. p g a t s a d c c m c r o m r a m e e p r o m d a c b a m p z a c w i r e ? i 2 c ? m u x a n a l o g b l o c k d i g i t a l b l o c k z s c 3 1 1 5 0 d i g i t a l d a t a i / o a n a l o g o u t
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 4 of 25 contents 1 electrical characteris tics ................................ ................................ ................................ .............................. 6 1.1. absolute maximum ratings ................................ ................................ ................................ ................... 6 1.2. operating conditions ................................ ................................ ................................ ............................. 6 1.3. electrical parameters ................................ ................................ ................................ ............................ 7 1.3.1. supply current and system operation conditions ................................ ................................ ......... 7 1.3.2. analog front - end (afe) characteristics ................................ ................................ ........................ 7 1.3.3. temperature measurement ................................ ................................ ................................ ............ 7 1.3.4. a - d conversion ................................ ................................ ................................ ............................... 7 1.3.5. sensor connection check ................................ ................................ ................................ .............. 8 1.3.6. dac & analog output (aout pin) ................................ ................................ ................................ 8 1.3.7. system response ................................ ................................ ................................ ........................... 8 1.4. interface characteristics & eeprom ................................ ................................ ................................ .... 9 1.4.1. i2c tm interface ................................ ................................ ................................ ................................ 9 1.4.2. zacwire? one wire interface (owi) ................................ ................................ ............................. 9 1.4.3. eeprom ................................ ................................ ................................ ................................ ......... 9 2 circuit description ................................ ................................ ................................ ................................ ...... 10 2.1. signal flow ................................ ................................ ................................ ................................ .......... 10 2.2. application modes ................................ ................................ ................................ ............................... 11 2.3. a nalog front end (afe) ................................ ................................ ................................ ...................... 11 2.3.1. programmable gain amplifier (pga) ................................ ................................ ............................ 11 2.3.2. offset compensation ................................ ................................ ................................ .................... 12 2. 3.3. measurement cycle ................................ ................................ ................................ ...................... 12 2.3.4. analog - to - digital converter ................................ ................................ ................................ ........... 13 2.4. temperature measurement ................................ ................................ ................................ ................. 15 2.5. system control and conditioning calculation ................................ ................................ ..................... 15 2.5.1. operation modes ................................ ................................ ................................ ........................... 15 2.5.2. start up phase ................................ ................................ ................................ .............................. 15 2.5.3. conditioning calculation ................................ ................................ ................................ ............... 16 2.6. analog output aout ................................ ................................ ................................ ........................... 16 2.7. serial digital interface ................................ ................................ ................................ ......................... 16 2.8. failsafe features, watchdog and error detection ................................ ................................ .............. 17 2.9. high voltage, reverse polarity and short circuit protection ................................ .............................. 17 3 application circuit examples ................................ ................................ ................................ ...................... 18 4 pin configuration, latch - up and esd protection ................................ ................................ ...................... 20 4.1. pin configuration and latch - up conditions ................................ ................................ ......................... 20 4.2. esd protection ................................ ................................ ................................ ................................ .... 20 5 package ................................ ................................ ................................ ................................ ...................... 21 6 quality and reliability ................................ ................................ ................................ ................................ . 21 7 customization ................................ ................................ ................................ ................................ ............. 21 8 ordering i nformation ................................ ................................ ................................ ................................ .. 22 9 additional documents ................................ ................................ ................................ ................................ 23 10 glossary ................................ ................................ ................................ ................................ ..................... 23 11 document revi sion history ................................ ................................ ................................ ........................ 25
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 5 of 25 list of figures figure 2.1 block diagram of the zsc31150 ................................ ................................ ................................ .. 10 figure 2.2 measurement cycle ................................ ................................ ................................ ...................... 13 figure 3.1 bridge in voltage mode, external diode temperature sensor ................................ .................... 18 figure 3.2 bridge in volta ge mode, external thermistor ................................ ................................ ............... 19 figure 3.3 bridge in current mode, temperature measurement via bridge tc ................................ ............ 19 figure 5 . 1 zsc31150 pin diagram ................................ ................................ ................................ ................ 21 list of tables table 1.1 absolute maximum ratings ................................ ................................ ................................ ............ 6 table 1.2 operating conditions ................................ ................................ ................................ ...................... 6 table 1.3 electrical parameters ................................ ................................ ................................ ...................... 7 table 1.4 interface and eeprom characteristics ................................ ................................ ......................... 9 table 2.1 adjustable gains, resulting sensor signal spans and common mode ranges ........................ 11 table 2.2 analog zero point shift ranges (xzc) ................................ ................................ ......................... 12 table 2.3 analog output resolution versus sample rate ................................ ................................ ........... 14 table 3.1 application circuit parameters ................................ ................................ ................................ ..... 18 table 4.1 pin configuration and latch - up conditions ................................ ................................ ................. 20
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 6 of 25 1 electrical characteristics 1.1. absolute maximum ratings parameters apply in operation temperature range and without time limitations. table 1 . 1 absolute maximum ratings no. parameter symbol conditions min max unit 1.1.1 supply v oltage 1 vdde amr to vsse . r efer to section 3 for application circuits . - 33 33 vdc 1.1.2 potential at pin aout 1 v out rela tive to vsse - 33 33 vdc 1.1.3 analog s upply v oltage 1 vdda amr rel ative to vssa, vdde - vdda < 0.35 v - 0.3 6.5 vdc 1.1.4 voltage at all analog and digital io p ins v a_io v d_io relative to vssa - 0.3 vdda + 0.3 vdc 1.1.5 storage temperature t stg - 55 150 ? c 1.2. operating conditions all voltages are related to vssa. table 1 . 2 operating conditions no. parameter symbol conditions min typ max unit 1.2.1 ambient temperature 2 t amb tqe - 40 150 ? c 1.2.2.1 ambient temperature advanced performance 3 t amb_tqa tqa - 40 125 ? c 1.2.2.2 ambient temperature advanced performance 3 t amb_tqi tqi - 25 85 ? c 1.2.3 supply v oltage vdde 4.5 5.0 5.5 vdc 1.2.4 bridge r esistance 3 , 4 r br_v bridge voltage mode 2 25 k ? 1.2.5 bridge r esistance 3 , 4 r br_c bridge current excitation ; note i br_max 10 k ? 1.2.6 resistor r ibr 3 r ibr i br = vdda / (16 * r ibr ) 0.07 * r br k ? 1.2.7 maximum b ridge c urrent i br_max 2 ma 1.2.8 maximum b ridge t op v oltage v br_top ( 15 / 16 * vdda ) - 0.3 v 1.2.9 tc c urrent r eference r esistor 3 tc r ibr behavior influences current generated. 50 ppm/k 1 refer to the zsc31150 h igh voltage protection description for specification and detailed conditions. 2 note: refer to the temperature profile description in the zsc31150 di ce package document for operation in temperature range > 125 c. 3 no measurement in mass production, parameter is guaranteed by design and/or quality observation. 4 symmetric behavior and identical electrical prop erties (especially with regard to the low pass characteristic) of both sensor inputs of the zsc31150 are required. unsymmetrical conditions of the sensor and/or external components connected to the sensor input pins of zsc31150 ca n generate a failure in si gnal operation.
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 7 of 25 1.3. electrical parameters all parameter values are valid for operating conditions specified in section 1.2 (s pecial definitions excluded). all v oltages related to vssa. table 1 . 3 el ectrical parameters no. parameter symbol conditions min typ max unit 1.3.1. supply current and system operation conditions 1.3.1.1 supply current t adv without bridge and load current, f clk ? 3 mhz 5.5 ma 1.3.1.2 clock frequency 5 t amb_tqa guaranteed adjustment range 2 3 4 mhz 1.3.2. analog front - end (afe) characteristics 1.3.2.1 input s pan v in_sp analog gain: 420 to 2.8 1 275 mv/v 1.3.2.2 analog o ffset c ompensation r ange depends on gain adjust ; refer to section 2.3.2 - 300 300 % v in_sp 1.3.2.3 parasitic differential input offset current 5 i in_off within t amb - 10 10 na within t amb_tqi - 2 2 na 1.3.2.4 common mode input range v in_cm depends on gain adjust - ment; no xzc ; refer to section 2.3.1 0.29 * vdda 0.65 * vdda v 1.3.3. temperature measurement 6 1.3.3.1 external temperature diode channel gain a tsed 300 1300 ppm fs / (mv/v) 1.3.3.2 external temperature diode bias current i tse 6 10 20 ? a 1.3.3.3 external temperature diode input range 5 0 1.5 v 1.3.3.4 external temperature resistor channel gain a tser 1200 3500 ppm fs / (mv/v) 1.3.3.5 external temperature resistor / input voltage range 5 v tser 0 600 mv/v 1.3.3.6 internal temperature diode sensitivity st tsi r aw values C without conditioning 700 2700 ppm fs / k 1.3.4. a - d conversion 1.3.4.1 a/d r esolution 5 r adc 13 16 bit 1.3.4.2 dnl 5 dnl adc r adc =13 - bit, f clk =3mhz, best fit, 2nd order, complete afe, 1.3.4.5 0.95 lsb 1.3.4.3 inl tqa 5 inl adc 4 lsb 1.3.4.4 inl tqe inl adc 5 lsb 1.3.4.5 adc i nput r ange range 10 90 %vdda 5 no measurement in mass production, parameter is guaranteed by design and/or quality observation. 6 refer to section 2.4 .
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 8 of 25 no. parameter symbol conditions min typ max unit 1.3.5. sensor connection check 1.3.5.1 sensor connection loss r scc_min d etection threshold 100 k ? 1.3.5.2 sensor input short r ssc_short s hort detection guaranteed 0 50 ? 1.3.5.3 sensor input no short r ssc_pass s hort is never detected 1000 ? 1.3.6. dac & analog output (aout pin ) 1.3.6.1 d/a r esolution r dac a nalog output, 10 - 90% 12 bit 1.3.6.2 output current sink and source for vdde=5v i src/sink_out v out : 5 - 95%, r load >=2k 2.5 ma v out : 10 - 90%, r load >=1k 5 ma 1.3.6.3 short circuit current i out_max t o vsse or vdde 7 - 25 25 ma 1.3.6.4 addressable output signal range v sr_out95 @ r load >=2k ? 0.05 0.95 vdde v sr_out90 @ r load >=1k ? 0.1 0.9 vdde 1.3.6.5 output slew rate 8 sr out c load < 50nf 0.1 v/s 1.3.6.6 output resistance in diagnostic mode r out_dia diagnostic range: <4|96>%, r load >=2k ? <8|92>%, r load >=1k ? 82 ? 1.3.6.7 load capacitance 8 c load c3 + cl ( see section 3 ) 150 nf 1.3.6.8 dnl dnl out - 1.5 1.5 lsb 1.3.6.9 inl tqa 8 inl out b est fit, r dac =12 - bit - 5 5 lsb 1.3.6.10 inl tqe inl out b est fit, r dac =12 - bit - 8 8 lsb 1.3.6.11 output l eakage current @ 150grd i leak_out i n case of power or ground loss - 25 25 a 1.3.7. system response 1.3.7.1 startup time 9 t sta t o 1 st output, f clk =3mhz, no rom check, adc: 14 _ bit & 2nd order 5 ms 1.3.7.2 response time (100% jump) 8 t resp f clk =4mhz, 13 - bit, 2nd order, refer to table 2 . 3 256 512 s 1.3.7.3 bandwidth 8 c omparable to analog sscs 5 khz 1.3.7.4 analog o utput n oise p eak - to - p eak 8 v noise,pp s horted inputs, gain= bandwidth ? 10khz 10 mv 1.3.7.5 analog o utput n oise rms 8 v noise,rms s horted inputs, gain= bandwidth ? 10khz 3 mv 1.3.7.6 ratiometricity e rror re out_5 m aximum error of vdde=5v to 4.5/5.5v 1000 ppm 7 minimum output voltage to vdde or maximum output voltage to vsse. 8 no measurement in mass production, parameter is guaranteed by design and/or quality observation. 9 depends on resolution and configuration - start routine begins approximately 0.8ms after power on.
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 9 of 25 no. parameter symbol conditions min typ max unit 1.3.7.7 overall failure (deviation from ideal line including inl, gain, offset & temp errors) 10 f all tqi 13 - bit 2 nd order adc, f clk <=3mhz, xzc=0 no sensor caused effects; value in parentheses is the digital readout. 0.25 (0.1) % fs f all tqa 0.5 (0.25) % fs f all tqe 1.0 (0.5) % fs 1.4. interface characteristics & eeprom table 1 . 4 interface and eeprom characteristics no. parameter symbol conditions min typ max unit 1.4.1. i2c tm interface 11 1.4.1.1 input - high l evel 12 v i 2 c_in_h 0.8 vdda 1.4.1.2 input - low l evel 12 v i 2 c_in_l 0.2 vdda 1.4.1.3 output - low l evel 12 v i 2 c_out_l open drain, i ol <2ma 0.15 vdda 1.4.1.4 sda load capacitance 12 c sda 400 pf 1.4.1.5 scl clock frequency 12 f scl 400 khz 1.4.1.6 internal pull - up resistor 12 r i 2 c 25 100 k ? 1.4.2. zacwire? one wire interface (owi) 1.4.2.1 input - low l evel 12 v owi_in_l 0.2 vdda 1.4.2.2 input - high l evel 12 v owi_in_h 0.75 vdda 1.4.2.3 output - low l evel 12 v owi_out_l open drain, i ol < 2ma t.b.d. vdda 1.4.2.4 start w indow 12 t yp: @ f clk =3mhz 96 175 455 ms 1.4.3. eeprom 1.4.3.1 ambient temperature eeprom programming 12 t amb_eep - 40 150 ? c 1.4.3.2 write cycles 12 n wri_eep w rite temperature: <= 85c 100k w rite temperature: up to 150c 100 1.4.3.3 read cycles 12 , 13 n read_eep read temperature: <=175c 8 * 10 8 1.4.3.4 data retention 12 , 14 t ret_eep 1300h at 175c =100000h at 55c ; 27000h at 125c ; 3000h at 150c) 15 a 1.4.3.5 programming time 12 t wri_eep p er written word, f clk =3mhz 12 ms 10 xzc is active: additional overall failure of 25ppm/k for xzc=31 at maximum; failure decreases linearly for xzc adjustments lo wer than 31. 11 refer to zsc31150 functional description for timing details. 12 no measurement in mass production, parameter is guaranteed by design and/or quality observation. 13 valid for the dice; note that additional package and temperature version cause restrictions. 14 over lifetime and valid for the dice; use calculation sheet zmdi temperature profile calculation sheet for temperature stress calculation; note additional restrictions are caused by different package and temperature versions.
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 10 of 25 2 circuit description 2.1. signal flow the zsc31150 s signal path is partly analog and partly digital. the analog part is reali zed differentially C this means the differential bridge sensor signal is internally handled via two signal lines, which are rejected symmetrically around an internal common mode potential (analog ground = vdda/2). consequently, it is possible to amplify positive and negative input signals, which are located within the common mode range of the signal input. figure 2 . 1 block diagram of the zsc31150 pga programmable gain amplifier mux multiplexer adc analog - to - digital converter cmc calibration microcontroller dac digital - to - analog converter bamp buffer amplifier C output buffer opamp eeprom non volatile memory for calibration parameters and configuration ts on - chip temperature sensor (pn - junction) rom memory for correction formula and C algorithm ram volatile memory for calibration parameters and configuration the differential signal from the bridge sensor is pre - amplified by the programmable gain amplifier (pga). the multiplexer (mux) transmits the sig nals from either the bridge sensor, the external diode, or the separate temperature sensor, to the analog - to - digital converter (adc) in a certain sequence (instead of the temperature diode, the internal pn - junction (ts) can be used optionally). afterwards, the adc converts these signals into digital values. the digital signal correction takes place in the calibration microcontroller (cmc). it is based on a correction formula located in the rom and on sensor - specific coefficients stored in the eeprom during calibration. dependent on the programmed output configuration, the corrected sensor signal is output as an analog value or in a digital format ( i2c ? or zacwire ? ). the configuration data and the correction parameters can be programmed into the eeprom via th e digital interfaces. p g a t s a d c c m c r o m r a m e e p r o m d a c b a m p z a c w i r e ? i 2 c ? m u x a n a l o g b l o c k d i g i t a l b l o c k z s c 3 1 1 5 0 d i g i t a l d a t a i / o a n a l o g o u t
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 11 of 25 2.2. application modes for each application, a configuration set has to be established (generally prior to calibration) by programming the on - chip eeprom regarding to the following modes: ? sensor channel ? sensor mode: ratiometric bridge exci tation in voltage or current supply mode. ? input range: the gain adjustment of the afe with respect to the maximum sensor signal span and the zero point of the adc have to be chosen. ? additional offset compensation (xzc): the extended analog offset compensat ion has to be enabled, if required; e.g., if the sensor offset voltage is near to or larger than the sensor span. ? resolution/response time: the a/d converter has to be configured for resolution and converting scheme or adc order (first or second order). th ese settings influence the sampling rate and the signal integration time, and thus, the noise immunity. ? temperature ? temperature measurement: the source for the temperature correction has to be chosen. 2.3. analog front end (afe) the analog front end (afe) consists of the programmable gain amplifier (pga), the multiplexer (mux), and the analog - to - digital converter (adc). 2.3.1. programmable gain amplifier (pga) table 2 . 1 shows the adjustable gains, the sensor signal spans, and the allowed common mode range. table 2 . 1 adjustable gains, resulting sensor signal spans and common mode ranges no. overall gain a in max. span v in_sp [mv/v] 15 gain amp1 gain amp2 gain amp3 input common mode range v in_cm as % of vdda 16 xzc = off xzc = on 1 420 1.8 30 7 2 29 to 65 45 to 55 2 280 2.7 30 4.66 2 29 to 65 45 to 55 3 210 3.6 15 7 2 29 to 65 45 to 55 4 140 5.4 15 4.66 2 29 to 65 45 to 55 5 105 7.1 7.5 7 2 29 to 65 45 to 55 6 70 10.7 7.5 4.66 2 29 to 65 45 to 55 7 52.5 14.3 3.75 7 2 29 to 65 45 to 55 8 35 21.4 3.75 4.66 2 29 to 65 45 to 55 9 26.3 28.5 3.75 3.5 2 29 to 65 45 to 55 10 14 53.75 1 7 2 29 to 65 45 to 55 11 9.3 80 1 4.66 2 29 to 65 45 to 55 12 7 107 1 3.5 2 29 to 65 45 to 55 13 2.8 267 1 1.4 2 32 to 57 not applicable 15 recommended internal signal range is 75% of supply voltage in maximum. span is calculated by the following formula: span = 75% / gain. 16 bridge in voltage mode, containing maximum input signal (with xzc: +300% offset), 14 - bit accuracy. refer to the zsc31150 functional description for usable input signal/common mode range at bridge in current mode.
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 12 of 25 2.3.2. offset compensation the zsc31150 supports two methods of sensor offset compensation (zero shift): ? digital offset correction ? xzc - analog compensation for large offset values (up to in maximum approximately 300% of span, depending on gain adjustment) digital sensor offset correction will be processed during the digital signal correction/conditioning by the calibration microcontroller (cmc). analog sensor offset pre - compensation will be needed for compensation of large offset values, which would overdrive the analog signal path by uncompensated gaining. for analog sensor offset pre - compensation, a compensation voltage will be added in the anal og pre - gaining signal path (coarse offset removal). the analog offset compensation in the afe can be adjusted by 6 eeprom bits. table 2 . 2 analog zero point shift ranges (xzc) pga gain a in max. span v in_sp [mv/v] offset shift per step in % of full span approx. maximum offset shift [mv/v] approx. maximum shift [% v in_sp ] (@ 31) 420 1.8 12.5 % 7.8 388 % 280 2.7 7.6 % 7.1 237 % 210 3.6 12.5 % 15.5 388 % 140 5.4 7.6 % 14.2 237 % 105 7.1 12 . 5 % 31 388 % 70 10.7 7.6 % 28 237 % 52.5 14.3 12 . 5 % 32 388 % 35 21.4 7.6 % 57 237 % 26.3 28.5 5.2 % 52 161 % 14 53.75 12.5 % 194 388 % 9.3 80 7.6 % 189 237 % 7 107 5.2 % 161 161 % 2.8 267 0.83 % 72 26 % 2.3.3. measurement cycle the multiplexer selects, depending on eeprom settings, the following inputs in a certain sequence. ? temperature measured by external diode or thermistor, internal pn - junction or bridge ? internal offset of the input channel (v off ) ? pre - amplified bridge sensor signal the complete measurement cyc le is controlled by the cmc. the cycle diagram at figure 2 . 2 shows its principle structure. the eeprom adjustable parameters are: n=<1,31>: bridge sensor measurement count after power on the start routine is called, that contains all needed measurements once. remark: the tasks cmv , ssc/scc+ and ssc/scc - are always contained independent ly from eeprom configuration in every cycle.
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 13 of 25 figure 2 . 2 measurement cycle start routine 1 temperature a uto - z ero ? n bridge s ensor m easurement ? 1 temp measurement ? n bridge sensor m easurement ? 1 bridge sensor auto - zero ? n bridge sensor m easurement ? 1 cmv ? n bridge sensor m easurement ? 1 ssc/scc+ ? n bridge sensor m easurement ? 1 ssc/scc - ? n bridge sensor m easurement 2.3.4. analog - to - digital converter the adc is an integrating analog - to - digital c onverter in full differential switched capacitor technique. programmable adc resolutions are r adc =<13, 14> and with segmentation <15, 16> bit. it can be used as first or second order converter. in the first order mode it is inherently monotone and insensitive against short and long - term insta bility of the clock frequency. the conversion cycle time depends on the desired resolution and can be roughly calculated by the following equation : t cyc_1 = 2 r / 2 / f clk in the second order mode two conversions are stacked with the advantage of much short er conversion cycle time and the drawback of a lower noise immunity caused by the shorter signal integration period. the conversion cycle time at this mode is roughly calculated by the following equation: t cyc_2 = 2 (r+3)/2 / 2 / f clk the calculation formul as give an overview about conversion time for one ad - conversion. refer to the c alculation work sheet zsc31150 bandwidth calculation sheet for detailed calculation of sampling time and bandwidth.
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 14 of 25 the result of the ad conversion is a relative counter result corresponding to the following equation: z adc = 2 r * (v adc_diff / v adc_ref - rs adc ) where z adc : number of counts (result of the conversion) r: adjusted resolution in bit v adc/ref_diff : differential input/reference voltage of adc rs adc : digital adc range shift (rs adc = 1 / 16 , 1 / 8 , 1 / 4 , 1 / 2 , controlled by the eeprom content) with the rs adc value a sensor input signal can be shifted in the optimal input range of the adc. table 2 . 3 analog output r esolution v ersus s ample r at e adc adjustment approximated output resolution 17 sample rate f con 18 averaged bandwidth @ order r adc digital analog f clk =3mhz f clk =4mhz f clk =3mhz f clk =4mhz o adc [bit] [bit] [bit] [hz] [hz] [hz] [hz] 1 13 13 12 345 460 130 172 14 14 12 178 237 67 89 15 14 12 90 120 34 45 16 14 12 45 61 17 23 2 13 13 12 5859 7813 2203 2937 14 14 12 3906 5208 1469 1958 15 14 12 2930 3906 1101 1468 16 14 12 1953 2604 734 979 note: adcs reference voltage adc vref is defined by the potential between and (or to , if cfgapp:bref=1). the theoretically input range adc range_inp of the adc is equivalent to adcs reference voltage. in practice adcs input range should be used in maximum from 10% to 90% of adc range_inp - a necessary condition for abiding specified accurac y, stability , and nonlinearity parameters of afe. this condition is also valid for whole temperature range and all applicable sensor tolerances. inside of zsc31150 is no failsafe task implemented, which verifies abiding of this condition . 17 adc resolution should be one bit higher then applied output resolution, if afe gain is adjusted in such manner, that input ra nge is used more than 50%. otherwise adc resolution should be more th an one bit higher than applied output resolution. 18 the sampling rate (ad conversion time) is only a part of the whole cycle, refer to zsc31150 bandwidth calculation sheet for detailed information
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 15 of 25 2.4. temperature measu rement the zsc31150 supports four different methods for temperature data acquiring needed for calibration of the sensor signal in temperature range. temperature data can be acquired using ? an internal pn - junction temperature sensor, ? an external pn - junction temperature sensor connected to sensor top potential (v brtop ), ? an external resistive half bridge temperature sensor and ? the temperature coefficient of the sensor bridge at bridge current excitation. refer to zsc31150 functional description for a detailed explanation of temperature sensor adaptation and adjustment. 2.5. system control and conditioning calculation the system control supports the following tasks/features: ? control the measurement cycle regarding to the eeprom - stored configuration data ? 16 bit correction calculation for each measurement signal using the eeprom stored calibration coefficients and rom - ba sed algorithms = signal conditioning ? manage start up sequence and start signal conditioning ? handle communication requests received by the digital interface ? failsafe tasks for the functions of zsc31150 and message detected errors with diagnostic states r efer to zsc31150 functional description for a detailed description. 2.5.1. operation modes the internal state machine represents three main states: ? the continuous running signal conditioning mode C called normal operation mode: nom ? the calibration mode with access to all internal registers and states C called command mode: cm ? the failure messaging mode C called diagnostic mode: dm 2.5.2. start up phase 19 the start - up phase consist s of following parts: 1. internal supply voltage settling phase (=potential vdda - vssa) C finished by disabling the reset signal through the power on clear block (poc). refer to zsc31150 h igh voltage protection description , section 4 for power on/off thresholds. time (for beginning with vdda - vssa=0v): 500 s to 2000 s, aout: tristate 2. system start, eeprom read out and signature check (and rom - check, if cfgapp:c hkrom=1). time: ~200 s (~9000 s with rom - check C 28180clocks ), aout: low (dm) 3. processing the start routine of signal conditioning (all measures & conditioning calculation). time: 5x ad conversion time, aout behavior depending on adjusted owi mode ( refer to 2.6 ): - owiana & owidis => aout: low (dm) - owiwin & owiena => aout: tristate the analog output aout will b e activated at the end of start - up pha se depending on adjusted output and communication mode ( refer to section 2.6 ). in case of detected errors diagnostic mode (dm) is activated and diag nostic output signal is driven at the output. after the start - up phase the continuous running measurement and calibration cycle is started. refer to zsc31150 bandwidth calculation sheet for detailed information about output update rate. 19 all timings described are roughly estimated values and correlates with internal clock frequency. timings estimated for fclk=3mhz.
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 16 of 25 2.5.3. conditioning calculation the digitalized value for bridge sensor measurement (acquired raw data) is processed with the correction formula to remove offset and temperature dependency and to compensate non - linearity up to 3rd order. the result of the correction calculation is a non - negative 15 - b it value for bridge sensor ( p ) in the range [0; 1). this value p is clipped with programmed limitation coefficients and continuously written to the output register of the digital serial interface and the output dac. note: the conditioning includes up to third order nonlinearity sensor input co rrection. the available adjustment ranges depend on the specific calibration parameters, for a detailed description , refer to zsc31150 functional description . to gi ve a rough idea: offset compensation and linear correction are only limited by the loose of resolution it will cause, the second order correction is possible up to about 30% full scale difference to straight line, third order up to about 20% (adc resolutio n = 13bit). the used calibration principle is able to reduce present nonlinearity errors of the sensor up to 90%. the temperature calibration includes first and second order correction and should be fairly sufficient in all relevant cases. adc resolution i nfluences also calibration possibilities C 1 bit more resolution reduces calibration range by approximately 50%. calculation input data width is in maximum 14bit. 15 & 16bit adc resolution mode uses only a 14 bit segment of adc range. 2.6. analog output aout th e analog output is used for output the analog signal conditioning result and for end of line communication via the zacwire tm interface (one wire communication interface - owi). the zsc31150 supports four different modes of the analog output in combinatio n with owi behavior: ? owiena: analog output is deactivated, owi communication is enabled ? owidis: analog output is active (~2ms after power on), owi communication is disabled ? owiwin: analog output will be activated after time window, owi communication is e nabled in time window of ~500ms in maximum, transmission of start_cm command has to be finished during time window ? owiana: analog output will be activated after ~2ms power on time, owi communication is enabled in time window of ~500ms in maximum, tran smission of start_cm command has to be finished during time window, to communicate the internal driven potential at aout has to be overwritten by the external communication master (aout drive capability is current limited) the analog output potential is driven by a unity gain output buffer, those input signal is generated by a 12.4 - bit resistor string dac. the output buffer (bamp) C a rail - to - rail opamp - is offset compensated and current limited. so a short - circuit of analog output to ground or power supply does not damage the zsc31150 . 2.7. serial digital interface the zsc31150 includes a serial digital interface (sif), which is used for communication with the circuit to realize calibration of the sensor module. the se rial interface is able to communicate with two communication protocols C i 2 c ? and zacwire ? ( a one - wire communication interface C also called owi). the owi can be used to realize an end of line calibration via the analog output aout of the complete assemb led sensor module. refer to zsc31150 functional description for a detailed description of the serial interfaces and communication protocols.
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 17 of 25 2.8. failsafe features, watc hdog and error detection the zsc31150 detects various possible errors. a detected error is signalized by changing the internal status in diagnostic mode (dm). in this case the analog output is set to low (minimum possible output value = lower diagnostic ra nge C ldr) and the output registers of the digital serial interface are set to a significant error code. a watchdog oversees the continuous working of the cmc and the running measurement loop. the operation of the internal clock oscillator is verified cont inuously by oscillator fail detection. a check of the sensor bridge for broken wires is done permanently by two comparators watching the input voltage of each input (sensor connection and short check). additionally the common mode voltage of the sensor and sensor input short is watched permanently (sensor aging). different functions and blocks in digital part - like ram - , rom - , eeprom - and register content - are watched continuously. refer to zsc31150 functional description for a detailed description of safety features and methods of error messaging. 2.9. high voltage, reverse polarity and short circuit protection the zsc31150 is designed for 5v power supply operation. the zsc31150 and the connected sensor are protected from overvoltage and reverse polarity damage by an internal supply voltage limiter. the analog output aout can be connected (short circuit, overvoltage and reverse) with all potentials in protection range und er all potential conditions at the pins vdde and vsse. all external components C explained in application circuit in section 3 C are required to guarantee this operation . t he protection is no time limited. refer to zsc31150 h igh voltage protection description for a detailed description of protection cases and conditions.
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 18 of 25 3 application circuit examples the application circuits contain external components, which are needed for overvoltage, reverse polarity, and short circu it protection. note: check also the available zsc31150 application notes for application examples and board layout. table 3 . 1 application circuit parameters symbol parameter min typ max unit notes c1 c 100 470 nf c2 c 100 nf c3 20 , 21 c 4 47 160 nf the value of c3 is the sum of the load capacitor and the cable capacitance c4, c5 21 c 0 10 nf recommended to increase emc immunity. the value of c4, c5 is the sum of the load capacitor and the cable capacitance r1 10 k? r ibr r refer to section 1.2 . ? figure 3 . 1 bridge in voltage mode, external diode temperature sensor 20 value of c3 summarizes load capacitor and cable capacity . 21 higher values for c3, c4 and c5 increase emc immunity . s e r i a l i n t e r f a c e s e n s o r b r i d g e s d a s c l o u t / o w i g n d v s u p p c 3 4 7 n f + 4 . 5 v t o + 5 . 5 v z s c 3 1 1 5 0 2 1 3 4 6 5 7 1 4 1 3 1 1 1 2 1 0 v d d a v s s a s d a s c l n . c . v d d v d d e i r t e m p v b r _ t v b p v b r _ b v b n a o u t v s s e 9 8 c 2 1 0 0 n f c 1 1 0 0 n f t e m p e r a t u r e s e n s o r c 5 c 4
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 19 of 25 figure 3 . 2 bridge in voltage mode, external thermistor figure 3 . 3 bridge in current mode, temperature measurement via bridge tc s e r i a l i n t e r f a c e s e n s o r b r i d g e s d a s c l o u t / o w i g n d v s u p p c 3 4 7 n f + 4 . 5 v t o + 5 . 5 v z s c 3 1 1 5 0 2 1 3 4 6 5 7 1 4 1 3 1 1 1 2 1 0 v d d a v s s a s d a s c l n . c . v d d v d d e i r t e m p v b r _ t v b p v b r _ b v b n a o u t v s s e 9 8 c 2 1 0 0 n f c 1 1 0 0 n f t e m p e r a t u r e s e n s o r c 5 r 1 p t 1 0 0 0 c 4 s e r i a l i n t e r f a c e s e n s o r b r i d g e s d a s c l o u t / o w i g n d v s u p p c 3 4 7 n f + 4 . 5 v t o + 5 . 5 v z s c 3 1 1 5 0 2 1 3 4 6 5 7 1 4 1 3 1 1 1 2 1 0 v d d a v s s a s d a s c l n . c . v d d v d d e i r t e m p v b r _ t v b p v b r _ b v b n a o u t v s s e 9 8 c 2 1 0 0 n f c 1 1 0 0 n f * c 4 * r i b r c 4 a n d c 5 n e e d t o b e c o n n e c t e d t o v b r _ b i n c a s e o f u s i n g c u r r e n t m o d e , s i n c e v b r _ b a n d v s s a a r e n t s h o r t e d i n t h i s c a s e . c 5 *
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 20 of 25 4 pin configuration, latch - up and esd protection 4.1. pin configuration and latch - up conditions table 4 . 1 pin configuration and latch - up conditions pin name description remarks usage/ connection 22 latch - up related application circuit restrictions and/or remarks 1 vdda positive analog supply voltage analog io required/ - 2 vssa negative analog supply voltage analog io required/ - 3 sda i2c tm data io digital io, pull - up - /vdda trigger current/voltage to vdda/vssa: +/ - 100ma or 8/ - 4v 4 scl i2c tm clock digital in, pull - up - /vdda 5 n.c. no connection 6 vdd positive digital supply voltage analog io required or open/ - only capacitor to vssa is allowed, otherwise no application access 7 vdde positive external supply voltage supply required/ - trigger current/voltage: - 100ma/33v 8 vsse negative external supply voltage ground required/ - 9 aout analog output & one wire if io io required/ - trigger current/voltage: - 100ma/33v 10 vbn negative input sensor bridge analog in required/ - 11 vbr_b bridge bottom potential analog io required/vssa depending on application circuit, short to vdda/vssa possible 12 vbp positive input sensor bridge analog in required/ - 13 vbr_t bridge top potential analog io required/vdda 14 irtemp temp sensor & current source resistor analog io - /vdda, vssa depending on application circuit 4.2. esd protection all pins have an esd protection of >2000v. additionally the pins vdde, vsse and aout have an esd protection of >4000v. esd p rotection referred to the h uman b ody m odel is tested with devices in ssop14 packages during product qualification. the esd test follows the human body model with 1.5kohm/100pf based on mil 883, method 3015.7. 22 usage: if required is specified, an electrical connection is necessary C refer to the application circuits. connection: to be connected to this potential, if not used or no application/configuration related constraints are given.
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 21 of 25 5 package the standard package of the zsc311 50 is an ssop14 green package (5.3mm body width) with a lead pitch of 0.65 mm. for the package markings shown in figure 5 . 1 , yyww refers to the last two digits of the year (yy) and two digits for the work - week designation (ww). xxxxxxxx refers to the lot number. figure 5 . 1 zsc31150 pin diagram 6 quality and reliability the zsc31150 is qualified according to the aec - q100 standard, operating temperature grade 0. a fit rate < 5fit (temp=55c, s=60%) is guaranteed. a typical fit rate of the c7d - technologie, which is used for zsc31150 , is 2.5fit. 7 customization for high - volume applications, which require an up - or downgraded functionality compared to the zsc31150 , zmdi can customi ze the circuit design by adding or removing certain functional blocks. for it zmdi has a considerable library of sensor - dedicated circuitry blocks. thus zmdi can provide a custom solution quickly. please contact zmdi for further informatio n. v d d e v d d n . c . s c l s d a v s s a v d d a v s s e a o u t v b n v b r _ b v b p v b r _ t i r t e m p 1 4 1 z s c 3 1 1 5 0 g e g 1 x x x x x x x x y y w w
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 22 of 25 8 ordering information product code description package zsc 31150g eb zsc31150 die temperature range: - 40c to +150c unsawn on wafer zsc 31150g ec zsc31150 die temperature range: - 40c to +150c sawn on wafer frame zsc 31150g ed zsc31150 die temperature range: - 40c to +150c waffle pack zsc 31150g eg1 zsc31150 ssop - 1 4 temperature range: - 40c to +150c tube: add - t to sales code reel: add - r zsc 31150g ab zsc31150 die temperature range: - 40c to +125c unsawn on wafer zsc 31150g ac zsc31150 die temperature range: - 40c to +125c sawn on wafer frame zsc 31150g ad zsc31150 die temperature range: - 40c to +125c waffle pack zsc 31150g ag1 zsc31150 ssop - 1 4 temperature range: - 40c to +125c tube: add - t to sales code reel: add - r zsc31150glb zsc31150 die temperature range: - 40c to +150c (long life 5000h @150c) unsawn on wafer zsc31150glc zsc31150 die temperature range: - 40c to +150c (long life 5000h @150c) sawn on wafer frame zsc31150gld zsc31150 die temperature range: - 40c to +150c (long life 5000h @150c) waffle pack zsc31150glg1 zsc31150 ssop - 14 temperature range: - 40c to +150c (long life 5000h @150c) tube: add - t to sales code reel: add - r zsc31150kit evaluation kit v1.0 zsc31150 ssc evaluation kit: 3 interconnecting boards, 5 zsc31150 ssop - 1 4 samples, usb cable, software/documentation dvd kit zsc31150 mass calibration system v1.1 modular mass calibration system (msc) for zsc31150: mcs boards, cable, connectors, dvd with software and documentation kit
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 23 of 25 9 additional documents d ocument file name zsc31150 feature sheet zsc31150 _f eature s heet _rev_*.pdf zsc31150 functional description zsc31150 _f unctional d escription _rev_*.pdf zsc31150 high voltage protection description zsc31150 _hv_prot_rev_*.pdf zsc31150 dice package zsc31150 _dicepackagepin_rev_*.pdf zsc31150 bandwidth calculation sheet zsc31150 _bandwidth_calculation_rev*.xls zmd i temperature profile calculation sheet zmd i _temp erature_ profile_rev_*.xls zsc31150 application kit description zsc31150 _applkit_re v_*.pdf zsc31150 application notes zsc31150 _an*.pdf visit zmdis website www.zmdi.com or contact your nearest sales office for the latest version of these documents. 10 glossary term description adc analog - to - digital converter aec automotive electronics council afe analog front end aout analog output bamp buffer amplifier cm command mode cmc calibration microcontroller cmv common mode voltage cmos complementary metal oxide semiconductor dac digital - to - analog converter dm diagnostic mode eeprom electrically erasable programmable read only memory esd electrostatic device ldr lower diagnostic range mux multiplexer nom normal operation mode owi one wire interface p bridge sensor measurement; e.g., pressure sensor
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 24 of 25 term description pga programmable gain amplifier poc power on clear ram random - access memory risc reduced instruction set computer rom read only memory scc sensor connection check sif serial interface ssc+ positive - biased sensor short check ssc - negative - biased sensor short check ts temperature sensor xzc extended zero compensation
zsc31150 fast automotive sensor signal conditi oner data sheet december 15, 2012 ? 201 2 zentrum mikroelektronik dresden ag rev. 2.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used withou t the prior written consent of the copyright owner. the information furnished in th is publicatio n is subject to changes without notice. 25 of 25 11 document revision history revision date description 0.46 june 12, 2008 first release after format update 0.47 july 20, 2008 update after review 1.01 september 20, 2008 6. C fit rate added 1.5.2 C rom check time revised/corrected 5.3.4.3 C ssc C no detection limit added 1.02 september 20, 2009 adjust to new zmdi template 1.03 october 2, 2009 change to zmdi denotation 1.04 october 22, 2009 formatting and linking issues solved 1.05 february 26, 2010 adjust to new zmdi template include zsc31150 feature sheet at page 2&3 add ordering codes for zsc31150 and evaluation k its extend glossary add new phone number for zmd far east, ltd. and zmda america office madison 1.06 july 29, 2010 correct offset shift per step and approx. maximum offset shift in table 2 . 2 for pga gain = 105 and 52.5 move 1.4.1.6 internal pull - up resistor into section 1.4.1 in table 1 . 2 redrawing of sensor bridge in figure 3 . 1 , figure 3 . 2 and figure 3 . 3 add comment for c4 and c5 in figure 3 . 3 rename zmd31150 to zsc31150 1.07 august 31, 2010 connection of r ibr in figure 3 . 3 corrected 1.08 august 15, 2011 update ordering information with long life automotive in ordering informatio n on page 3 and section 8 ) 2.00 december 1 5 , 201 2 update for part numbers and zmdi c ontact information . minor edits. sales and further information www.zmdi.com ssc@zmdi.com zentrum mikroelektronik dresden ag grenzstrasse 28 01109 dresden germany zmd america, inc. 1525 mccarthy blvd., #212 milpitas, ca 95035 - 7453 usa zentrum mikroelektronik dresden ag, japan office 2nd floor, shinbashi tokyu bldg. 4 - 21 - 3, shinbashi, minato - ku tokyo, 105 - 0004 japan zmd far east, ltd. 3f, no. 51, sec. 2, keelung road 11052 taipei taiwan zentrum mikroelektronik dresden ag, korea office u - space 1 building 11th floor, unit ja - 1102 670 sampyeong - dong bundang - gu, seongnam - si gyeonggi - do, 463 - 400 korea phone +49.351.8822.7.772 fax +49.351.8822.8.7772 phone +855.275.9634 (usa) phone +408.883.6310 fax +408.883.6358 phone +81.3.6895.7410 fax +81.3.6895.7301 phone +886.2.2377.8189 fax +886.2.2377.8199 phone +82.31.950.7679 fax +82.504.841.3026 disclaimer : this information applies to a product under development. its characteristics and specifications are subject to change without notice. zentrum mikroelek tronik dresden ag (zmd ag) assumes no obligation regarding future manufacture unless otherwise agreed to in writing. the information furnished hereby is believed to be true and accurate . however, under no circumstances shall zmd ag be liable to any customer, licensee, or any other third party for any special, indirect, incide ntal, or consequential damages of any kind or nature whatsoever arising out of or in any way related to the furnis hing, performance, or use of this technical data. zmd ag hereby expressly disclaims any liability of zmd ag to any customer, licensee or any other third party, and any such customer, licensee and any other third party hereby waives any liability of zmd ag for any damages in connection with or arising out of the furnishing, performance or use of this technical data, whether based on contract, warranty, tort (including negligence), strict liability , or otherwise.
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