unisonic technologies co., m62364 cmos ic www.unisonic.com.tw 1 of 8 copyright ? 2011 unisonic technologies co., qw-r502-008.b 8-bit 8-ch multiplying d-a converter with buffer amplifiers ? description the utc m62364 is a cmos 8-bit, 8-ch d/a converter having a multiplying function and output buffer amplifiers. it has a serial data input and can easily communicate with a microcontroller by the simple three-wiring method (d in , clk, ld). the output buffer amplifiers o perating in ab-class has both sinking and driving capabilities of 1.0ma or more and can operate in a whole supply range from v dd to gnd. the ic is suitable for a use in automatic adjustment applications in conjunction with a mcu by utilizing the terminal do for a cascading connection. ? features *three-wiring serial data transmission *doubled precision 8-ch d/a converter employing an r-2r with higher-order segment method *8 buffer amplifiers operating in a whole supply voltage range from v dd to gnd *4-quadrant multiplication ssop-24 (209mil) sop-24 ? ordering information ordering number package packing lead free halogen free m62364l-r24-r M62364G-R24-R ssop-24 tape reel m62364l-r24-t m62364g-r24-t ssop-24 tube m62364l-s24-r m62364g-s24-r sop-24 tape reel m62364l-s24-t m62364g-s24-t sop-24 tube
m62364 cmos ic unisonic technologies co., ltd 2 of 8 www.unisonic.com.tw qw-r502-008.b ? pin configuration (top view) 1 12 11 10 9 8 7 6 5 4 3 2 13 14 15 16 17 18 19 20 21 22 23 24 v in1 v in2 v in3 v in4 v in5 v in6 v in7 v in8 v out1 v out2 v out3 v out4 v out5 v out6 v out7 v out8 v da(ref) reset gnd d in clk ld v dd d out ? explanation of terminals pin no symbol function 8 d in serial data input 17 d out serial data output 7 clk shift clock input. input data of d in are taken into the 12-bit shift register on a rising edge of the clock 6 ld a low state enables data loading to the 12-bit shift register. during a rising edge of ld, the data will be loaded to the output register 19 reset reset 8-bit latches 2 v out1 d/a converter output with8-bit resolution 3 v out2 10 v out3 11 v out4 14 v out5 15 v out6 22 v out7 23 v out8 5 v dd power supply 20 gnd ground 1 v in1 d/a converter input 4 v in2 9 v in3 12 v in4 13 v in5 16 v in6 21 v in7 24 v in8 18 v da ( ref ) d/a converter reference voltage input
m62364 cmos ic unisonic technologies co., ltd 3 of 8 www.unisonic.com.tw qw-r502-008.b block diagram 12 - bit shift register d0 3d3d4d d d d d 1011 12-bit shift register d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 address decoder 8-bit latch 8-bit latch d-a converter d-a converter - + - + - 19 7 8 2 1 23 20 24 18 6 17 5 d in clk reset v in1 v out1 v in8 v out8 v da(ref) ld d out v dd gnd
m62364 cmos ic unisonic technologies co., ltd 4 of 8 www.unisonic.com.tw qw-r502-008.b ? absolute maximum rating parameter symbol ratings unit supply voltage v dd -0.3 ~ +7.0 v digital input voltage v ind -0.3 ~ +7.0 v analog input voltage v in -0.3 ~ v dd +0.3 v analog output voltage v out -0.3 ~ v dd +0.3 v d-a reference voltage v da ( ref ) -0.3 ~ v dd +0.3 v operating temperature t opr -20 ~ +75 c storage temperature t stg -40 ~ +125 c ? electrical characteristics (v dd =5v10%, v dd v in , gnd, v da(ref) =0v, t a = -20 ~ 85 c, unless otherwise specified) parameter symbol test conduction min typ max unit ana/dig common part supply voltage v dd 2.7 3.0 3.6 v supply current i dd clk=1mhz, v cc =3v, i ao =0 a 3.5 ma digital part digital input ?low? voltage i il 0.2 v dd v digital input ?high? voltage i ih 0.8v dd v d out terminal output ?low? voltage v ol i ol =2.5ma 0.4 v d out terminal output ?high? voltage v oh i oh = -400 a v dd -0.4 v input leak current i ilk v in =0 ~v dd -10 10 a analog part buffer amplifier output voltage range v ao i ao = 100 a 0.1 v cc -0.1 v i ao = 500 a 0.2 v cc -0.2 input current i in v in =3v, v da(ref) =0v, * proportional to max. input current condition (v in - v da(ref) ) and digital data of each channels. 0.18 ma d-a reference input current i da(ref) v in =3v, v da(ref) =0v, * proportional to max. input current condition (v in - v da(ref) ) and digital data of each channels -1.44 ma buffer amplifier output current range i ao upper saturation voltage=0.4v lower saturation voltage=0.4v -1 1 ma buffer amplifier output impedance r o 5 resolution res v dd =2.61v,v da(ref) =0.050v (10mv/1lsb) without load(i ao = 0) 8 bit differential nonlinearity dnl -1 1 lsb nonlinearity nl -1.5 1.5 lsb output capacitative load c o 0.1 f
m62364 cmos ic unisonic technologies co., ltd 5 of 8 www.unisonic.com.tw qw-r502-008.b ? electrical characteristics(cont.) parameter symbol test conduction min typ max unit ac characteristics clock ?l? pulse width t ckl 200 ns clock ?h? pulse width t ckh 200 ns clock rise time t cr 200 ns clock fall time t cf data set up time t dch 60 ns data hold time t chd 100 ns ld set up time t chl 200 ns ld hold time t ldc 100 ns ld ?h? pulse duration time t ldh 100 ns data output delay time t dout c l =100pf 70 350 ns d-a output setting time t ldd c l 100pf,v ao : 0.1 <=> 2.6v this time until the output becomes the final value of 1/2 lsb 300 s
m62364 cmos ic unisonic technologies co., ltd 6 of 8 www.unisonic.com.tw qw-r502-008.b ? digital format d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 1 23 45 6789101112 data clk (lsb) d0 d1 d2 d3 d4 d5 d6 d7 (lsb) ( msb ) : dac data d8 d9 d10 d11 : dac select data d8 d9 d10 d11 dac selection 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 v out1 selection don't care dac select data don't care don't care don't care don't care don't care don't care don't care v out2 selection v out3 selection v out4 selection v out5 selection v out6 selection v out7 selection v out8 selection
m62364 cmos ic unisonic technologies co., ltd 7 of 8 www.unisonic.com.tw qw-r502-008.b ? digital format(cont.) ? timing chart
m62364 cmos ic unisonic technologies co., ltd 8 of 8 www.unisonic.com.tw qw-r502-008.b ? timing chart(cont.) clk d in ld d-a output d out output t do t ldd t ldh t ldc t chl t dch t chd t ckl t cr t ckh t cf utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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