uni soni c technologi es co., ltd ULC831 preliminary linear integrated circuit www.unisonic.com.tw 1 of 7 copyright ? 2018 unisonic technologies co., ltd qw-r104-012. a m i cro-power, cm os i n pu t , rri o, 1 .4 v , pu sh -pu ll oou t pu t com parat or ? descri pt i on the utc ULC831 is a push-pull output comparator, allowing operation from 1.4v-5.5v. it has the best-in-class power supply current versus propagation delay pe rformance. it features as low as 6 s response time with 100mv overdrive at 1.4v, and it has an ultra low power supply current of 300na (typ). the utc ULC831 series is ideally suited for rc timers, window detectors, ir receivers, multivibrators, alarm and monitoring circuits. the utc ULC831 is available in green sot-25 space-saving packages. it is rated over the -40c to +85c temperature range. ? feat u res * very low supply current: 300na (typ) at v s =1.4v * wide supply voltage range: 1.4v~5.5v * rail-to-rail input * high speed: 6 s (typ) at v s =1.4v * push-pull output current drive: 19ma (typ) at v s =5v * -40c~+85c operati ng temperature range ? orderi n g i n form at i on ordering number lead free halogen free package packing ULC831l-af5-r ULC831g-af5-r sot-25 tape reel ? m ark i n g
ULC831 preliminary linear integrated circuit u n i son i c t ech n ologi es co., lt d 2 of 7 www.unisonic.com.tw qw-r104-012. .a ? pi n con fi gu rat i on ? pi n descri pt i on pin no. pin name description 1 v out output pin of comparator 2 -v s negative supply 3 v in+ positive input pin of comparator 4 v in- negative input pi n of comparator 5 +v s positive supply ? block di agram
ULC831 preliminary linear integrated circuit u n i son i c t ech n ologi es co., lt d 3 of 7 www.unisonic.com.tw qw-r104-012. .a ? si m pli fi ed sch em at i c di agram +v s i nn i np -v s inverters output + - + -
ULC831 preliminary linear integrated circuit u n i son i c t ech n ologi es co., lt d 4 of 7 www.unisonic.com.tw qw-r104-012. .a ? absolu t e m ax i m u m rat i n g parameter symbol ratings unit supply voltage, +v s to -v s 6 v v in differential 2.5 v voltage at input/ou tput pins (-v s ) - 0.3~(+v s ) + 0.3 v junction temperature t j +150 c operating temperature range t opr -40~ +85 c storage temperature t stg -65~ +150 c note: absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? elect ri cal ch aract eri st i cs (+v s =1.4v, -v s =0v, v cm =+v s /2 and v o =-v s , t a =25c,unless otherwise noted.) parameter symbol test conditions min typ max unit v cm =0.3v 300 1200 na supply current i s v cm =1.1v 250 1200 na v cm =0v 0.5 mv input offset voltage v os v cm =1.4v 0.5 mv input offset average drift 2 v/c v cm stepped from 0v to 0.3v 65 db v cm stepped from 0.8v to 1.4v 75 db common mode rejection ratio cmrr v cm stepped from 0v to 1.4v 75 db power supply rejection ratio psrr v s =1.8v~5.5v, v cm =0v 95 db large signal voltage gain a vo 100 db v s =1.8v, i o =500 a 1.598 1.669 v -40c t a +85c 1.581 v v s =1.8v, i o =1ma 1.324 1.508 v output swing high v oh -40c t a +85c 1.288 v v s =1.8v, i o =-500 a 82 112 mv -40c t a +85c 127 mv v s =1.8v, i o =-1ma 167 225 mv output swing low v ol -40c t a +85c 253 mv source 0.7 ma output current i out sink 2.0 ma overdrive=10mv 12 s propagation delay (high to low) overdrive=100mv 6 s overdrive=10mv 26 s propagation delay (low to high) overdrive=100mv 17 s overdrive=10mv, c l =30pf, r l =1m ? 220 ns rise time t rise overdrive=100mv, c l =30pf, r l =1m ? 220 ns overdrive=10mv, c l =30pf, r l =1m ? 155 ns fall time t fall overdrive=100mv, c l =30pf, r l =1m ? 155 ns
ULC831 preliminary linear integrated circuit u n i son i c t ech n ologi es co., lt d 5 of 7 www.unisonic.com.tw qw-r104-012. .a ? elect ri cal ch aract eri st i cs (cont .) (+v s =2.5v, -v s =0v, v cm =+v s /2 and v o =-v s , t a =25c, unless otherwise noted.) parameter symbol test conditions min typ max unit v cm =0.3v 310 na supply current i s v cm =2.2v 260 na v cm =0v 0.5 mv input offset voltage v os v cm =2.5v 0.5 mv input offset average drift 2 v/c v cm stepped from 0v to 1.4v 75 db v cm stepped from 1.9v to 2.5v 80 db common mode rejection ratio cmrr v cm stepped from 0v to 2.5v 80 db power supply rejection ratio psrr v s =1.8v~5.5v, v cm =0v 95 db large signal voltage gain a vo 100 db i o =500 a 2.419 v output swing high v oh i o =1ma 2.333 v i o =-500 a 66 mv output swing low v ol i o =-1ma 133 mv source 5.3 ma output current i out sink 7.7 ma overdrive=10mv 12 s propagation delay (high to low) overdrive=100mv 5 s overdrive=10mv 28 s propagation delay (low to high) overdrive=100mv 19 s overdrive=10mv, c l =30pf, r l =1m ? 120 ns rise time t rise overdrive=100mv, c l =30pf, r l =1m ? 120 ns overdrive=10mv, c l =30pf, r l =1m ? 85 ns fall time t fall overdrive=100mv, c l =30pf, r l =1m ? 70 ns
ULC831 preliminary linear integrated circuit u n i son i c t ech n ologi es co., lt d 6 of 7 www.unisonic.com.tw qw-r104-012. .a ? elect ri cal ch aract eri st i cs (cont .) (+v s =5.0v, -v s =0v, v cm =+v s /2 and v o =-v s , t a =25c,unless otherwise noted.) parameter symbol test conditions min typ max unit v cm =0.3v 350 2000 na supply current i s v cm =4.7v 300 2000 na v cm =0v 0.5 mv input offset voltage v os v cm =5v 0.5 mv input offset average drift 2 v/c v cm stepped from 0v to 3.9v 85 db v cm stepped from 4.4v to 5.0v 85 db common mode rejection ratio cmrr v cm stepped from 0v to 5.0v 85 db power supply rejection ratio psrr v s =1.8v~5.5v, v cm =0v 95 db large signal voltage gain a vo 105 db i o =500 a 4.923 4.952 v -40c t a +85c 4.916 v i o =1ma 4.864 4.904 v output swing high v oh -40c t a +85c 4.848 v i o =-500 a 52 80 mv -40c t a +85c 90 mv i o =-1ma 104 130 mv output swing low v ol -40c t a +85c 143 mv source 14 18 ma -40c t a +85c 12.1 ma sink 15 19 ma output current i out -40c t a +85c 12.9 ma overdrive=10mv 13 s propagation delay (high to low) overdrive=100mv 6 s overdrive=10mv 42 s propagation delay (low to high) overdrive=100mv 33 s overdrive=10mv, c l =30pf, r l =1m ? 85 ns rise time t rise overdrive=100mv, c l =30pf, r l =1m ? 85 ns overdrive=10mv, c l =30pf, r l =1m ? 70 ns fall time t fall overdrive=100mv, c l =30pf, r l =1m ? 60 ns
ULC831 preliminary linear integrated circuit u n i son i c t ech n ologi es co., lt d 7 of 7 www.unisonic.com.tw qw-r104-012. .a 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. utc reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. this document supersedes and replaces all information supplied prior to the publication hereof.
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