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1 ? fn8137.1 caution: these devices are sensitive to electrosta tic discharge; follow proper ic handling procedures. 1-888-intersil or 1-888-468-3774 | intersil (and design) is a registered trademark of intersil americas inc. copyright intersil americas inc. 2005, 2006. all rights reserved all other trademarks mentioned are the property of their respective owners. x60003b-50, x60003c-50, X60003D-50 precision 5.0v sot-23 fga? voltage reference features ? output voltage: 5.000v ? absolute initial a ccuracy options: 1.0mv, 2.5mv, & 5.0mv ? ultra low power supply current: 500na ? low temperature coefficient options: 10 & 20ppm/c ? 10ma source & sink current capability ? 10ppm/1000hrs long term stability ? very low dropout voltage: 100mv @ no load ? supply voltage range: 5.1v to 9.0v ? 5kv esd (human body model) ? standard package: 3 ld sot-23 ? temp range: -40c to +85c ? pb-free plus anneal available (rohs compliant) description the x60003x-50 fga? voltage references are very high precision analog voltage references fabricated in intersil?s proprietary f loating g ate a nalog technology, which achieves superior levels of performance when compared to conventional band gap, buried zener, or x fet ? technologies. fga? voltage references feature very high initial accuracy, very low temperature coefficient, excellent long term stability, low noise and excellent line and load regulation, at the lowest power consumption currently available. these voltage references enable advanced applications fo r precision industrial & portable systems operatin g at significantly higher accuracy and lower power levels than can be achieved with conventional technologies. applications ? high resolution a/ds & d/as ? precision current sources ? smart sensors ? digital meters ? precision regul ators ? strain gage bridges ? calibration systems ? precision oscillators ? threshold detectors ? v-f converters ? battery management systems ? servo systems typical application v in = +6.5v 0.1f serial bus v in v out gnd x60003x-50 enable sck sdat a/d converter 16 to 24-bit ref in 10f 0.001f ( * ) ( * ) also see figure 3 in applications information data sheet may 2, 2006
2 fn8137.1 may 2, 2006 package diagram pin configurations pin name description gnd ground connection v in power supply input connection v out voltage reference output connection 1 2 3 sot-23 v out x60003x-50 gnd v in ordering information part number part marking v out (v) grade temp. range (c) package (tape and reel) x60003big3-50t1 aha 5.00 1.0mv, 10ppm/c -40 to +85 3 ld sot-23 x60003big3z-50t1 apg 1.0mv, 10ppm/c -40 to +85 3 ld sot-23 (pb-free) x60003cig3-50t1 ahb 2.5mv, 20ppm/c -40 to +85 3 ld sot-23 x60003cig3z-50t1 api 2.5mv, 20ppm/c -40 to +85 3 ld sot-23 (pb-free) x60003dig3-50t1 ahc 5.0mv, 20ppm/c -40 to +85 3 ld sot-23 x60003dig3z-50t1 apk 5.0mv, 20ppm/c -40 to +85 3 ld sot-23 (pb-free) note: intersil pb-free plus anneal products employ special pb-free material sets; mo lding compounds/die attach materials and 100 % matte tin plate termination finish, which are rohs compliant and compatible with both snpb and pb-free soldering operations. intersil pb-free p roducts are msl classified at pb-free peak reflow temper atures that meet or exceed the pb-free requirements of ipc/jedec j std-020. x60003b-50, x60003c -50, X60003D-50
3 fn8137.1 may 2, 2006 absolute maximum ratings storage temperature range............ -65c to + 125c voltage on any pin referenced to gnd............. ................-0.5v to + 10v lead temperature (solderin g, 10s) ................ + 225c recommended operating conditions comment absolute maximum ratings indicate limits beyond which permanent damage to the device and impaired reliability may occur. these are stress ratings provided for information only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specifica- tion are not implied. for guaranteed specifications and test conditions, see electrical ch aracteristics. the guaranteed specifications apply only for the test conditions listed. some performance characteristics may degrade when the device is not operated under the listed test conditions. electrical characteristics (operating conditions: v in = 6.5v, i out = 0ma, c out = 0.001f, t a = -40 to +85c unless otherwise specified.) note: 1. over the specified temperature range. temperature coeffi cient is measured by the box method whereby the change in v out is divided by the temperature range; in this case, -40c to +85c = 125c. 2. thermal hysteresis is the change in v out created by package stress @ t a = 25c after temperature cycling. v out is read initially at t a = 25c; the x60003x-50 is then cycled between hot (85c) and cold (-40c) before a second v out measurement is taken at 25c. the deviation between the initial v out reading and the second v out reading is then expressed in ppm. 3. dropout voltage (v do ) is the minimum voltage (v in ) into the x60003x-50 which will produce the output voltage ( v out ) drop specified in the electrical ch aracteristics table. 4. guaranteed by device characterization temperature min. max. industrial -40c +85c symbol parameter conditions min typ max units v out output voltage 5.000 v v oa v out accuracy x60003b-50 x60003c-50 X60003D-50 t a = 25c -1.0 -2.5 -5.0 +1.0 +2.5 +5.0 mv i in supply current 500 900 na v in input voltage range 5.1 9.0 v tc v out output voltage temperature coefficient (1) x60003b-50 x60003c-50 X60003D-50 10 20 20 ppm/ c v out / v in line regulation +5.5v v in +8.0v 150 v/v v out / i out load regulation 0ma i source 10ma -10ma i sink 0ma 10 20 50 100 v/ma v out / t long term stability t a = 25c 10 ppm/ 1000hrs v out / t a thermal hysteresis (2) t = -40 c to +85 c 100 ppm v do dropout voltage (3) i out = 5ma, v out = -0.01% 150 300 mv i sc short circuit current (4) t a = 25c 50 80 ma v n output voltage noise 0.1hz to 10hz 30 v pp x60003b-50, x60003c -50, X60003D-50
4 fn8137.1 may 2, 2006 typical performance characteristic curves (v in = 6.5v, i out = 0ma, t a = 25c unless otherwise specified) +25 c +85 c -40 c unit 3, i in = 700na unit 1, i in = 350na unit 2, i in = 500na v in (v) v in (v) delta v out (v) (normailized to 5v at v in = 6.5v) delta v out ( v) (normailized to v in = 6.5v) line regulation -50 -25 0 25 50 75 100 125 150 5678 9 line regulation (3 representative units) 4.9997 4.9998 4.9999 5 5.0001 5.0002 5.0003 5 5.5 6 6.5 7 7.5 8 8.5 9 x60003b-50, x60003c -50, X60003D-50
5 fn8137.1 may 2, 2006 typical performance characteristic curves (v in = 6.5v, i out = 0ma, t a = 25c unless otherwise specified) 0.1hz to 10hz v out noise 1 sec/div 10 v/div band pass filter with 1 zero at .1hz and 2 poles at 10 hz load regulation -0.40 0 -0.20 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 -20 -15 -10 -5 0 5 10 15 20 sinking output current (ma) sourcing delta vout (mv) -40 c +25 c +85 c +25 c x60003b-50, x60003c -50, X60003D-50
6 fn8137.1 may 2, 2006 typical performance characteristic curves (v in = 6.5v, i out = 0ma, t a = 25c unless otherwise specified) frequency (hz) psrr (db) v out vs temperature normalized to 25 c (3 representative units) 4.998 4.9985 4.999 4.9995 5 5.0005 5.001 5.0015 5.002 5.0025 -40 -15 10 35 60 85 temperature ( c) v out (v) unit 1, i in = 350na unit 2, i in = 500na unit 3, i in = 700na psrr vs cap load -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 1 10 100 1000 10000 100000 1000000 no load 1nf load 10nf load 100nf load x60003b-50, x60003c -50, X60003D-50
7 fn8137.1 may 2, 2006 typical performance characteristic curves (v in = 6.5v, i out = 0ma, t a = 25c unless otherwise specified) 10ma load transient response 500mv/div c l = .001 f i in = -10ma i in = +10ma 2msec/div 50 a load transient response 100mv/div 500 sec/div c l = .001 f i in = -50 a i in = +50 a line transient response line transient response 200mv/div 500 sec/div 200mv/div 500 sec/div c l = 0 c l = .001 f v in = -500mv v in = +500mv v in = -500mv v in = +500mv minimum v in to v out differential output current (sourcing ma) v in to v out differential (v) vs. output current -40 c +25 c +85 c 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0246810 x60003b-50, x60003c -50, X60003D-50
8 fn8137.1 may 2, 2006 typical performance characteristic curves (v in = 6.5v, i out = 0ma, t a = 25c unless otherwise specified) z out vs frequency frequency (hz) z out ( ) no load 1nf load 10nf load 100nf load 20 0 40 60 80 100 120 140 160 180 100 10 1 1000 10000 100000 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 i in (na) v in (v) -40 c 25 c 85 c i in vs v in 100 0 200 300 400 500 600 700 x60003b-50, x60003c -50, X60003D-50
9 fn8137.1 may 2, 2006 typical performance characteristic curves (v in = 6.5v, i out = 0ma, t a = 25c unless otherwise specified) i in (na) v in (v) unit 1 unit 2 unit 3 i in vs v in (3 representative units) 0 100 200 300 400 500 600 700 800 900 5.0 6.0 7.0 8.0 9.0 10.0 turn-on time 0 024681012 1 2 3 4 5 6 time (msec) v in & v out (v) i in = 500na x60003b-50, x60003c -50, X60003D-50
10 fn8137.1 may 2, 2006 applications information fga technology the x60003x-50 voltage reference uses the floating gate technology to create refer ences with very low drift and supply current. essentially the charge stored on a floating gate cell is set prec isely in manufacturing. the reference voltage output itself is a buffered version of the floating gate voltage. the resulting reference device has excellent char acteristics which are unique in the industry: very low temperature drift, high initial accu- racy, and almost zero supply current. also, the refer- ence voltage itself is not limited by voltage bandgaps or zener settings, so a wide range of reference voltages can be programmed (standard voltage settings are pro- vided, but customer-specific voltages are available). the process used for these reference devices is a floating gate cmos process, and the amplifier circuitry uses cmos transistors for amplifier and output tran- sistor circuitry. while pr oviding excellent accuracy, there are limitations in output noise level and load reg- ulation due to the mos devi ce characteristics. these limitations are addressed with circuit techniques dis- cussed in other sections. nanopower operation reference devices achiev e their highest accuracy when powered up continuously , and after initial stabili- zation has taken place. the x60003x-50 is the first high precision voltage ref- erence with ultra low power consumption that makes it practical to leave power-on continuously in battery operated circuits. the x60003x-50 consumes extremely low supply current due to the proprietary fga technology. supply current at room temperature is typically 500na which is 1 to 2 orders of magnitude lower than competitive dev ices. application circuits using battery power will benef it greatly from having an accurate, stable reference which essentially presents no load to the battery. in particular, battery powered data converter circuits that would normally require the entire circuit to be dis- abled when not in use can remain powered up between conversions as shown in figure 1. data acqui- sition circuits providing 12 to 24 bits of accuracy can operate with the reference de vice continuously biased with no power penalty, providing the highest accuracy and lowest possible long term drift. other reference devices consuming higher supply cur- rents will need to be disabl ed in between conversions to conserve battery capaci ty. absolute accuracy will suffer as the device is biased and requires time to set- tle to its final value, or, may not actually settle to a final value as power-on time may be short. figure 1. board mounting considerations for applications requiring the highest accuracy, board mounting location should be reviewed. placing the device in areas subject to slight twisting can cause degradation of the accuracy of the reference voltage due to die stresses. it is normally best to place the device near the edge of a board, or the shortest side, as the axis of bending is mo st limited at that location. obviously mounting the device on flexprint or extremely thin pc material will likewise cause loss of reference accuracy. noise performance and reduction: the output noise voltage in a 0.1hz to 10hz bandwidth is typically 30vp -p. this is shown in the plot in the typical performance curves. the noise measurement is made with a bandpass filter made of a 1 pole high-pass filter with a corner frequency at .1hz and a 2-pole low-pass filter with a corner frequency at 12.6hz to create a filter with a 9.9hz bandwidth. noise in the 10khz to 1mhz bandwidth is approximately 400vp-p with no capacitance on the output, as shown in fig. 2 below. these noise measurements are made with a 2 decade bandpass filter made of a 1 pole high-pass filter with a corner frequency at 1/10 of the center frequency and 1-pole low-pass filter with a corner frequency at 10 times the center frequency. figure 2 also shows the noise in the 10khz to 1mhz band can be reduced to about 50vp- p using a .001f capacitor on the output. noise in the 1khz to 100khz band can be further reduced using a 0.1f capacitor on the output, but noise in the 1hz to 100hz band increases due to instability of the very low power amplifier with a 0.1f capacitance load. for v in = +6-9v 0.001f serial bus v in v out gnd x60003x-50 ref in enable sck sdat a/d converter 12 to 24-bit 0.01f 10f x60003b-50, x60003c -50, X60003D-50
11 fn8137.1 may 2, 2006 load capacitances above .001f the noise reduction network shown in fig. 3 is recommended. this network reduces noise sig-nificantly over the full bandwidth. as shown in fig. 2, noise is reduced to less than 40vp-p from 1hz to 1mhz using th is network with a .01f capacitor and a 2k resistor in series with a 10f capacitor. figure 2. figure 3. turn-on time the x60003x-50 device has ultra-low supply current and thus the time to bias up internal circuitry to final values will be longer than with higher power refer- ences. normal turn-on time is typically 7ms. this is shown in the graph, figure 4. since devices can vary in supply current down to 300na, turn-on time can last up to about 12ms. care should be taken in system design to include this delay before measurements or conversions are started. figure 4. temperature coefficient the limits stated for temperature coefficient (tempco) are governed by the method of measurement. the overwhelming standard for specifying the temperature drift of a reference is to measure the reference voltage at two temperatures, take the total variation, (v high - v low ), and divide by the temperature extremes of measurement (t high - t low ). the result is divided by the nominal reference voltage (at t = 25c) and multiplied by 10 6 to yield ppm/c. this is the ?box? method for determining temperature coefficient. cl = 0 cl = .001f cl = .1f cl = .01f & 10f + 2k 400 350 300 250 200 150 100 50 0 1 10 100 1000 10000 100000 x60003x-50 noise reduction noise voltage (vp-p) v in = 6.5v v in v o gnd x60003x-50 .01f 10f 2k .1f 10f x60003 turn-on time (25 c) (3 representative units) 0 1 2 3 4 5 6 7 024681012 time (msec) v in & v out (v) i in = 350na i in = 500na i in = 700na x60003b-50, x60003c -50, X60003D-50
12 fn8137.1 may 2, 2006 typical application circuits precision 5v, 50ma reference. 6v to 9v 2n2905 5.0v/50ma 0.001f v in v out gnd x60003x-50 5.0v dual output, high accuracy reference v in v out gnd gnd v in v out x60003x-50 x60003x-50 0.1f 0.001f 5.0v 0.001f r 1 5.5v to 9v v in = -5.5v to -9.0v -5.0v ; i out 10ma kelvin sensed load 0.1f 5.5v to 9v v in v out gnd x60003x-50 v out sense load r = 200 + ? 5.0v - | v in | r 1 = -(i out ) x60003b-50, x60003c -50, X60003D-50
13 fn8137.1 may 2, 2006 typical application circuits -5.0v r 1 limits max load current v in v out gnd x60003x-50 c in 0.001 c out = 0.001f r 1 = 800 v in = -9v with r i = 800 , i load max = 4ma negative voltage reference v in v out x60003x-50 gnd 5.5v to 9v 0.1f 0.001f v out + ? v cc r h r l x9119 v ss sda scl 2-wire bus v out (buffered) 5v full scale low-drift 10-bit adjustable voltage source 5.0v - | v in | r 1 = -(i out ) x60003b-50, x60003c -50, X60003D-50
14 all intersil u.s. products are manufactured, asse mbled and tested utilizing iso9000 quality systems. intersil corporation?s quality certifications ca n be viewed at www.intersil.com/design/quality intersil products are sold by description only. intersil corpor ation reserves the right to make changes in circuit design, soft ware and/or specifications at any time without notice. accordingly, the reader is cautioned to verify that data sheets are current before placing orders. information furnishe d by intersil is believed to be accurate and reliable. however, no responsibility is assumed by intersil or its subsidiaries for its use; nor for any infringements of paten ts or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of intersil or its subsidiari es. for information regarding intersil corporation and its products, see www.intersil.com fn8137.1 may 2, 2006 packaging information 1. all dimensions in inches (in parentheses in millimeters) 2. package dimensions exclude molding flash 0.10 r min. 12 ref. 0.575 ref. 0.093 (2.35) bsc 3-lead plastic, sot-23, package code g3 .024 (0.60) .016 (0.40) notes: 1 2 0.055 (1.40) 0.047 (1.20) 0.046 (1.18) bsc 0.075 (1.90) bsc 4x 0.35 ha-bd 2x n/2 tips 0.35 ca-bd c l 0.007 (0.20) b 0.0003 (0.08) b typ. seating plane 0 - 8c 0.20 in 0.10 r min. 0.120 (3.04) 0.110 (2.80) 0.038 (0.95) bsc parting line seating plane 0.0004 (0.01) 0.0040 (0.10) 0.034 (0.88) 0.047 (1.02) 0.035 (0.89) 0.044 (1.12) 3. die and die paddle is facing down towards seating plane 4. this part is compliant with jedec specification to-236ab 5. dimensioning and tolerances per asme, y14.5m-1994 x60003b-50, x60003c -50, X60003D-50

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