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1 ds04-13505-3e fujitsu semiconductor data sheet linear ic 8-bit d/a converter with operational ampli?r output buffers MB88344/88344b n description MB88344/MB88344b are 8-bit 36 channels d/a converters which have two reference voltages to use 36 channels as 12 channels and 24 channels independently. each output channels has an operational ampli?r output buffer and so large current drive is possible. in the MB88344b, 6 channels of dac output (ao 31 -ao 36 ) have four data registers each and so, the analog output can be changed by the address input from a0 and a1 pins. digital data are input to the devices in serial and it is controlled by clk and ld pins. this con?uration makes a cascade connections between devices. the MB88344/MB88344b are suitable for electronic volumes and replacement for potentiometers for adjustment, in addition to normal d/a converter applications. n features ultra low power consumption : type. 1.1mw/channel ultra small package conversion method : r-2r resistor ladder on-chip operational amplifier output buffers : max. +1.0/?.0ma analog output sink/source current capability analog data output range : 0 to v cc [v] two analog output reference voltage : analog data can be output in different reference voltages. (continued) n packages 48 pin, plastic lqfp 48 pin, plastic qfp 48 pin, plastic sh-dip this device contains circuitry to protect the inputs against damage due to high static voltages or electric ?lds. however, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit. (dip-48p-m01) (fpt-48p-m16) (fpt-48p-m05)
2 MB88344/MB88344b (continued) for data resisters for ao 31 -ao 36 channels (MB88344b only) : analog output can be changed by the a0 and a1 analog block. separate supply voltge for digital block and analog block. direct control can be done from 3 v-system mcu: MB88344 : input ??voltage = 0.5 v cc , input ??voltage = 0.2 v cc MB88344b : input ??voltage = 2.1 v, input ??voltage = 0.6 v max. 2.5 mhz serial data input silicon-gate cmos process package options: MB88344: 48-pin plastic sh-dip/qfp/lqfp MB88344b: 48-pin plastic sh-dip/lqfp
3 MB88344/MB88344b n pin assignments MB88344 (continued) MB88344 MB88344b number of digital for ao 31 to ao 36 14 shift register 14-bit 16-bit shift register format msb ?st lsb ?st package sh-dip-48p/qfp-48p/lqfp-48p sh-dip-48p/lqfp-48p index (top view) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 v dd2 v ss2 ao32 ao33 ao34 ao35 ao36 ao1 ao2 ao3 ao4 ao5 ao6 ao7 ao8 ao9 ao10 ao11 nc di clk ld do gnd v cc ao31 ao30 ao29 ao28 nc ao27 ao26 ao25 ao24 ao23 ao22 ao21 ao20 ao19 ao18 ao17 ao16 ao15 ao14 ao13 ao12 v dd1 v ss1 (dip-48p-m01)
4 MB88344/MB88344b (continued) ao35 ao34 ao33 ao32 v ss2 v dd2 nc v cc ao31 ao30 ao29 ao28 di clk ld do gnd nc v ss1 v dd1 ao12 ao13 ao14 ao15 ao27 ao26 ao25 ao24 ao23 ao22 ao21 ao20 ao19 ao18 ao17 ao16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 ao15 ao14 ao13 ao12 v dd1 nc v ss1 gnd do ld clk di index ao28 ao29 ao30 ao31 v cc v dd2 nc v ss2 ao32 ao33 ao34 ao35 (top view) (fpt-48p-m16) ao36 ao1 ao2 ao3 ao4 ao5 ao6 ao7 ao8 ao9 ao10 ao11 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 ao27 ao26 ao25 ao24 ao23 ao22 ao21 ao20 ao19 ao18 ao17 ao16 index ao36 ao1 ao2 ao3 ao4 ao5 ao6 ao7 ao8 ao9 ao10 ao11 (top view) (fpt-48p-m05) 1 2 3 4 5 6 7 8 9 10 11 12
5 MB88344/MB88344b MB88344b ao35 ao34 ao33 ao32 v ss2 v dd2 a0 v cc ao31 ao30 ao29 ao28 di clk ld do gnd a1 v ss1 v dd1 ao12 ao13 ao14 ao15 (top view) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 v dd2 v ss2 ao32 ao33 ao34 ao35 ao36 ao1 ao2 ao3 ao4 ao5 ao6 ao7 ao8 ao9 ao10 ao11 di clk ld do gnd a1 a0 v cc ao31 ao30 ao29 ao28 ao27 ao26 ao25 ao24 ao23 ao22 ao21 ao20 ao19 ao18 ao17 ao16 ao15 ao14 ao13 ao12 v dd1 v ss1 (dip-48p-m01) index ao27 ao26 ao25 ao24 ao23 ao22 ao21 ao20 ao19 ao18 ao17 ao16 index ao36 ao1 ao2 ao3 ao4 ao5 ao6 ao7 ao8 ao9 ao10 ao11 (top view) (fpt-48p-m05) 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 1 2 3 4 5 6 7 8 9 10 11 12
6 MB88344/MB88344b n pin description table 1 pin description * : di, clk, and ld pins should be ?ed with ?ow level while no data are transferred. pin name pin no. i/o description MB88344 MB88344b sh-dip qfp lqfp sh-dip lqfp di* 20 13 1 19 1 i serial data input pin. clk* 21 14 2 20 2 i shift clock input pin. serial data input from di pin are input to the internal shift register by a rising edge of the clk signal. ld* 22 15 3 21 3 i load strobe input pin. a ?igh level on this pin loads the shift register values into the decoder and 8-bit register. do 23 16 4 22 4 o serial data output pin. serial data in the shift register are output from this pin. this pin allows a cascade connection of device. ao 1 to ao 11 8 to 18 2 to 12 38 to 48 8 to 18 38 to 48 o d/a converter outputs #1. the analog supply voltage is referred with v dd1 ? ss1 . analog output has an operational ampli?r output buffer. ao 12 to ao 24 27 to 39 21 to 33 9 to 21 27 to 39 9 to 21 ao 25 to ao 27 40 to 42 34 to 36 22 to 24 40 to 42 22 to 24 o d/a converter outputs #2. the analog supply voltage is referred with v dd2 ? ss2 . analog output has an operational ampli?r output buffer. ao 28 to ao 31 44 to 47 37 to 40 25 to 28 43 to 46 25 to 28 ao 32 to ao 36 3 to 7 45 to 1 33 to 37 3 to 7 33 to 37 a0 a1 48 24 30 6 i address input pins to select the dac output register for the ao 31 ?o 36 pins. (those address inputs are not applied to other analog output pins.) v cc 48 41 29 47 29 supply voltage pin for digital block and operational ampli?r output buffers. gnd 24 17 5 23 5 ground pin for digital block and op-amp. output buffers. v dd1 26 20 8 26 8 supply voltage pin for d/a converter (for ao 1 ?o 24 outputs). v ss1 25 18 7 25 7 ground pin for d/a converter (for ao 1 ?o 24 outputs). v dd2 1 42 31 1 31 supply voltage pin for d/a converter (for ao 25 ?o 36 outputs). v ss2 2 44 32 2 32 ground pin for d/a converter (for ao 25 ?o 36 outputs). nc 19 43 19 43 6 30 no connection. those are open pins and do not connect to those pins.
7 MB88344/MB88344b n block diagram r-2r type 8-bit d/a converter r-2r type 8-bit d/a converter r-2r type 8-bit d/a converter r-2r type 8-bit d/a converter + + + + + + 25 di clk 16-bit shift register *1 d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 d0 to d7 channel decoder 1 54 1 24 - - - - - - - - - do ld v dd1 ao 1 ao 24 v ss1 v dd2 ao 25 ao 30 ao 31 *2 ao 36 v ss2 a0 a1 address decoder 0 1 2 3 v cc gnd 31 30 37 43 49 36 42 48 54 8-bit register r-2r type 8-bit d/a converter 8-bit register r-2r type 8-bit d/a converter 8-bit register 8-bit register 8-bit register 8-bit register 8-bit register 8-bit register 8-bit register 8-bit register 8-bit register 8-bit register *1 : in MB88344, the shift register is a 14-bit and the format is msb-?st. *2 : MB88344 does not have a0, a1 pins and register addresses #37 to #54. - - - - -
8 MB88344/MB88344b n device control the MB88344 has a 14-bit shift register, and MB88344b has a 16-bit shift register to store the digital data and channel selection. 1. 14-bit shift register (MB88344) d/a converter output v ref = v dd ?v ss input data dac output d0 d1 d2 d3 d4 d5 d6 d7 00000000 v ss 10000000 v ref /256 1+v ss 01111111 v ref /256 254+v ss 11111111 v ref /256 255+v ss d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d/a converter output last (lsb) first (msb) channel selection = . . = . . = . . = . .
9 MB88344/MB88344b channel selection input data selected channel d8 d9 d10 d11 d12 d13 000000 deselected 000001 ao 1 to ao 30 selected 011110 011111 ao 31 to ao 36 selected (address 0) 100100 100101 deselected 111111
10 MB88344/MB88344b 2. o16-bit shift register (MB88344b) d/a converter output v ref = v dd ?v ss input data dac output d15 d14 d13 d12 d11 d10 d9 d8 00000000 v ss 00000001 v ref /256 1+v ss 11111110 v ref /256 254+v ss 11111111 v ref /256 255+v ss d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d/a converter output first (lsb) last (msb) channel selection d1 d0 = . . = . . = . . = . .
11 MB88344/MB88344b channel selection : don't care output register selection input data selected channel d7 d6 d5 d4 d3 d2 d1 d0 000000 deselected 000001 ao 1 to ao 30 selected 011110 011111 ao 31 to ao 36 selected (address 0) 100100 100101 ao 31 to ao 36 selected (address 1) 101010 101011 ao 31 to ao 36 selected (address 2) 110000 110001 ao 31 to ao 36 selected (address 3) 110110 110111 deselected 111111 a1 a0 output register selected 0 0 address 0 0 1 address 1 1 0 address 2 1 1 address 3
12 MB88344/MB88344b n timing chart MB88344 MB88344b d13 di d2 d1 d0 - - - - - - msb lsb clk ld d/a output d10 d12 d11 - - - - - - - - ld d/a output a0 a1 ao 31 to ao 36 ao 1 to ao 36 d0 di d13 d14 d15 - - - - - - lsb msb clk d3 d1 d2 - - - - - - - -
13 MB88344/MB88344b n analog output voltage range dac output op-amp. output v dd1 ,v dd2 v cc v aoh = (v cc ) d/a output range v cc = v dd1 = v dd2 gnd=v ss1 = v ss2 gnd v aol (=gnd) v ss1 ,v ss2
14 MB88344/MB88344b n absolute maximum ratings (see warning) warning: semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in excess of absolute maximum ratings. do not exceed these ratings. n recommended operating conditions * : except operational ampli?r output buffer block. also, v dd1 (v ss1 ) and v dd2 (v ss2 ) can be set independently. parameter symbol condition rating unit min. typ. max. power supply voltage v cc ta = +25 c gnd = 0 v, v dd1 v cc , v dd2 v cc ?.3 7.0 v v dd1 ,v dd2 ?.3 7.0 v input voltage v in ta = +25 c gnd = 0 v should not exceed v cc + 0.3 v ?.3 v cc + 0.3 v output voltage v out ?.3 v cc + 0.3 v power dissipation p d 250 mw operating ambient temperature ta ?0 +85 c storage temperature t stg ?5 +150 c parameter symbol condition value unit min typ. max. power supply voltage (for mcu interface/ op.-amp. block) v cc v cc 3 v dd 4.5 5.0 5.5 v gnd 0 v power supply voltage (for analog block*) v dd1 ,v dd2 v dd1 ? ss1 3 2.0 v, v dd2 ? ss2 3 2.0 v 2.0 v cc v v ss1 ,v ss2 gnd v cc ?2.0 v analog output source current | al ?.0 ma analog output sink current | ah +1.0 ma analog output load capacitance for oscillation limit c al 1.0 m f operating ambient temperature ta ?0 +85 c
15 MB88344/MB88344b n electrical characteristics 1. dc characteristics (recommended operating conditions unless otherwise noted.) digital block (mcu interface) * : including the supply current to the operational ampli?r block parameter pin symbol condition value unit min. typ. max. active supply current (v cc )* v cc i cc clk = 1mhz, unloaded 3.5 8.0 ma input leakage current (clk, di, and ld) clk di ld i ilk v in = 0 to v cc ?0 +10 m a input low voltage (clk,di, and ld) v il for MB88344 0.2 v cc v for MB88344b 0.6 v input high voltage (clk, di, and ld) v ih for MB88344 0.5 v cc v for MB88344b 2.1 v output low voltage (do) do v ol i ol = 2.5 ma 0.4 v output high voltage (do) v oh l oh = ?00 m av cc ?0.4 v
16 MB88344/MB88344b analog block (d/a converters with operational ampli?r output buffers) ** : excluding the supply current to the operational ampli?r block parameter symbol pin condition value unit min. typ. max. supply current (v dd )** i dd v dd1 v dd2 unloaded, i dd is a total current value for dac outputs #1 and #2. 4.5 6.5 ma min. analog output voltage 1 (ao x ) v aol1 ao 1 to ao 36 v dd1,2 = v cc v ss1,2 = gnd = 0.0v i al = 0 m a digital data = #00 v ss1,2 ? ss1,2 + 0.1 v min. analog output voltage 2 (ao x ) v aol2 v dd1,2 = v cc = 5.0 v v ss1,2 = gnd = 0.0 v i al = 500 m a digital data = #00 v ss1,2 ?0.2 v ss1,2 v ss1,2 + 0.2 v min. analog output voltage 3 (ao x ) v aol3 v dd1,2 = v cc = 5.0 v v ss1,2 = gnd = 0.0 v i ah = 500 m a digital data = #00 v ss1,2 ? ss1,2 + 0.2 v min. analog output voltage 4 (ao x ) v aol4 v dd1,2 = v cc = 5.0 v v ss1,2 = gnd = 0.0 v i al = 1.0 ma digital data = #00 v ss1,2 ?0.3 v ss1,2 v ss1,2 + 0.3 v min. analog output voltage 5 (ao x ) v aol5 v dd1,2 = v cc = 5.0 v v ss1,2 = gnd = 0.0 v i ah = 1.0 ma digital data = #00 v ss1,2 ? ss1,2 + 0.3 v max. analog output voltage 1 (ao x ) v aoh1 v dd1,2 = v cc v ss1,2 = gnd = 0.0 v i al = 0 m a digital data = #ff v dd1,2 ?0.1 v dd1,2 v max. analog output voltage 2 (ao x ) v aoh2 v dd1,2 = v cc = 5.0 v v ss1,2 = gnd = 0.0 v i al = 500 m a digital data = #ff v dd1,2 ?0.2 v dd1,2 v max. analog output voltage 3 (ao x ) v aoh3 v dd1,2 = v cc = 5.0 v v ss1,2 = gnd = 0.0 v i ah = 500 m a digital data = #ff v dd1,2 ?0.2 v dd1,2 v dd1,2 + 0.2 v max. analog output voltage 4 (ao x ) v aoh4 v dd1,2 = v cc = 5.0 v v ss1,2 = gnd = 0.0 v i al = 1.0 ma digital data = #ff v dd1,2 ?0.3 v dd1,2 v max. analog output voltage 5 (ao x ) v aoh5 v dd1,2 = v cc = 5.0 v v ss1,2 = gnd = 0.0 v i ah = 1.0 ma digital data = #ff v dd1,2 ?0.3 v dd1,2 v ss1,2 + 0.3 v resolution (ao x ) res 8 bit linearity error (ao x )le unloaded, v dd v cc ?.1 v, v ss 3 0.1v ?.5 1.5 lsb differential linearity error (ao x ) dle unloaded ?.0 1.0 lsb
17 MB88344/MB88344b 2. ac characteristics (recommended operating conditions unless otherwise noted.) n definition of nonlinearity error parameter symbol condition value unit min. max. clock low time t ckl 200 ns clock high time t ckh 200 ns clock rise time t cr 200 ns clock fall time t cf 200 ns data setup time t dch ?0ns data hold time t chd ?0ns load strobe high time t ldh 100 ns load strobe setup time t chl 200 ns load strobe hold time t ldc 100 ns dac output setting time t ldd *r al = 10 k w , c al = 50 pf 100 m s data output delay time t do **c l = 20 pf (min.), 100 pf (max.) 70 350 ns analog output voltage v aoh * v aol ** #000 #fff end point line linearity error digital data *: v aoh is not always equal to v dd . **: v aol is not always equal to v ss .
18 MB88344/MB88344b n ac test conditions n input/output timing dac output setting time device under test r al c al test point data output delay time device under test c l test point tcr t ckh tcf 0.8 v cc t dch t chd t chl t ldh t ldc t ldd t do 0.2 v cc new data valid previous data previous data 0.4 v new data valid clk di ld aox do t ckl 0.2 v cc 0.8 v cc 0.2 v cc 0.8 v cc 0.2 v cc 0.8 v cc 0.2 v cc 0.8 v cc 0.2 v cc 0.8 v cc 0.2 v cc 0.2 v cc 0.9 v cc 0.1 v cc v cc ?0.4
19 MB88344/MB88344b n v ao vs.i ao characteristic curve (example) 1.0 0.8 0.6 0.4 0.2 0.0 0.2 0.4 0.6 0.8 1.0 [ma] [mv] 5,000 4,980 4,960 4,940 4,920 4,900 4,880 4,860 4,840 4,820 4,800 1.0 0.8 0.6 0.4 0.2 0.0 0.2 0.4 0.6 0.8 1.0 [ma] [mv] 2,600 2,580 2,560 2,540 2,520 2,500 2,480 2,460 2,440 2,420 2,400 digital data = #ff sink current source current digital data = #80 sink current source current 1.0 0.8 0.6 0.4 0.2 0.0 0.2 0.4 0.6 0.8 1.0 [ma] [mv] 200 180 160 140 120 100 80 60 40 20 0 digital data = #00 sink current source current pattern inputs 5.0v v dd1,2 di clk ld v ss1,2 t a = +25 c t source current sink current v 5.0v v cc ao1 ao36 gnd analog output level analog output level analog output level a 0 /a 1 *: only MB88344b MB88344/MB88344b
20 MB88344/MB88344b n package dimensions (continued) +0.50 C0 C0 +.020 C.012 +.008 C0.30 +0.20 0.51(.020)min min max 40.894(1.610)ref index-2 15max typ 15.24(.600) (.010.002) 0.250.05 max 1.778(.070) (.070.007) 1.7780.18 1.00 .039 (.018.004) 0.450.10 3.00(.118) 5.25(.207) index-1 (.543.010) 13.800.25 1.720 43.69 1994 fujitsu limited d48002s-3c-3 c 48-pin plastic sh-dip (dip-48p-m01) dimensions in mm (inches)
21 MB88344/MB88344b (continued) (continued) +0.05 C0.01 +.002 C.0004 +0.30 C0.10 +.012 C.004 0.15 .006 12.00 .472 0.05(.002)min (stand off) "b" (.071.012) 1.800.30 0~10 0.15(.006)max 0.50(.020)max 0.20(.008) 0.15(.006) "a" sq sq (.677.016) lead no. 0.80(.0315)typ 48 13 24 37 36 25 112 details of "b" part index 0.15(.006) ref (.346) (.535.016) 8.80 13.600.40 2.70(.106)max m 0.16(.006) (.012.002) 0.300.06 17.200.40 details of "a" part 1994 fujitsu limited f48026s-1c-1 c (mounting height) 48-pin plastic qfp (fpt-48p-m16) dimensions in mm (inches)
22 MB88344/MB88344b (continued) +0.20 C0.10 +.008 C.004 +0.05 C0.02 +.002 C.001 +0.08 C0.03 +.003 C.001 (stand off) lead no. index 36 37 48 112 13 24 25 0 10 details of "a" part (.004.004) 0.100.10 (.020.008) 0.500.20 "a" 7.000.10(.276.004)sq 1.50 .059 0.127 .005 0.18 .007 nom (.315) 8.00 ref (.217) 5.50 9.000.20(.354.008)sq (.0197.0031) 0.500.08 0.10(.004) 1994 fujitsu limited f48013s-2c-4 c 48-pin plastic lqfp (fpt-48p-m05) dimensions in mm (inches)
23 MB88344/MB88344b fujitsu limited for further information please contact: japan fujitsu limited corporate global business support division electronic devices kawasaki plant, 4-1-1, kamikodanaka nakahara-ku, kawasaki-shi kanagawa 211-88, japan tel: (044) 754-3763 fax: (044) 754-3329 north and south america fujitsu microelectronics, inc. semiconductor division 3545 north first street san jose, ca 95134-1804, u.s.a. tel: (408) 922-9000 fax: (408) 432-9044/9045 europe fujitsu mikroelektronik gmbh am siebenstein 6-10 63303 dreieich-buchschlag germany tel: (06103) 690-0 fax: (06103) 690-122 asia paci? fujitsu microelectronics asia pte. limited #05-08, 151 lorong chuan new tech park singapore 556741 tel: (65) 281-0770 fax: (65) 281-0220 f9704 ? fujitsu limited printed in japan all rights reserved. the contents of this document are subject to change without notice. customers are advised to consult with fujitsu sales representatives before ordering. the information and circuit diagrams in this document presented as examples of semiconductor device applications, and are not intended to be incorporated in devices for actual use. also, fujitsu is unable to assume responsibility for infringement of any patent rights or other rights of third parties arising from the use of this information or circuit diagrams. fujitsu semiconductor devices are intended for use in standard applications (computers, office automation and other office equipment, industrial, communications, and measurement equipment, personal or household devices, etc.). caution: customers considering the use of our products in special applications where failure or abnormal operation may directly affect human lives or cause physical injury or property damage, or where extremely high levels of reliability are demanded (such as aerospace systems, atomic energy controls, sea floor repeaters, vehicle operating controls, medical devices for life support, etc.) are requested to consult with fujitsu sales representatives before such use. the company will not be responsible for damages arising from such use without prior approval. any semiconductor devices have inherently a certain rate of failure. you must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. if any products described in this document represent goods or technologies subject to certain restrictions on export under the foreign exchange and foreign trade control law of japan, the prior authorization by japanese government should be required for export of those products from japan.

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