technical data low power low offset voltage dual comparators IL2903 the IL2903 consists of two independent precision voltage com p arators with an offset voltage specification as low as 2.0 m v m a x for two com p arators which were designed specifically to operate from a single power supply over a wide range of voltages. application areas include lim it com p arators, sim p le analog to digital converters; pulse, squarewave and tim e delay generators; wide range vco; mos clock tim ers; m u ltivibrators and high voltage digital logic gates. ordering information IL2903n pl ast i c IL2903d soic t a = -40 to 8 5 c for all packages . ? single or split supply operation ? low input bias current ? low input offset current ? input com m on mode voltage range to gnd ? low output saturation voltage ? ttl and cmos com p atible logic diagram pin 8 = v cc pin 4 = gnd pin assignment 1
IL2903 maximum ratings * sym b o l p a r a m e t e r valu e un i t v cc power suppl y vol t a ges si ngl e suppl y split supplies 36 18 v v idr input di fferent i a l vol t a ge r a nge 36 v v icr input c o m m on m ode vol t a ge r a nge (1) -0.3 t o v cc v i sc out put short c i rcui t t o ground c ont i nuous i in input c u rrent , per pi n (2) 50 m a t j j u n c t i on tem p erat u r e plastic packages 150 c tst g st orage tem p erat ure -65 t o +150 c t l lead tem p erat ure, 1m m from c a se for 10 seconds 260 c p d power di ssi pat i on @t a =25 c plastic package derat e above 25 c 570 5.7 w mw / c * m a xi m u m r a t i ngs are t hose val u es bey ond whi c h dam a ge t o t h e devi ce m a y occur. functional operation should be restricted to the reco m m e nded operating conditions. notes: 1. split power supplies. 2. v in <-0.3v. this input current will only exist when voltage at any of the input leads is driven negative. recommended operating conditions sy m bol p a r a m e t e r m i n m a x uni t v cc dc suppl y vol t a ge 2.5 or 5.0 15 or 30 v t a operating tem p erature, all package types -40 +85 c thi s devi ce cont ai ns prot ect i on ci rcui t r y t o guard agai ns t dam a ge due t o hi gh st at i c vol t a ges or el ect ri c fi el ds. however, precautions m u st be taken to avoid applications of any voltage highe r than m a xim u m rated voltages to this hi gh-i m pedance ci rcui t . for proper operat i on, v in and v out shoul d be const r ai ned t o t h e range gnd (v in or v out ) v cc . unused i nput s m u st al way s be t i e d t o an appropri a t e l ogi c vol t a ge l e vel (e.g., ei t h er gnd or v cc ). unused out put s m u st be l e ft open. 2
IL2903 dc electrical characteristics (t a =-40 to +85 c) g u a r a n t e e d lim i t sy m bol param e t e r test c ondi t i ons m i n ty p m a x uni t v io input offset vol t a ge v 0 =1.4v v cc =5.0-30v; r s 100 ? v icr =0v - (v cc -1.5)v - 9 . 0 5.0* mv i ib input b i as c u rrent v 0 =1.4v v cc =5.0-30v v icr =0v - (v cc -1.5)v - 4 0 0 n a i io input offset c u rrent v 0 =1.4v v cc =5.0-30v v icr =0v - (v cc -1.5)v - 150 50* na v icr input c o m m on m ode vol t a ge r a nge v cc = 5 . 0 - 3 0 v 0 v cc - 2.0v v i cc s u p p l y c u rrent r l = ,v cc =5.0 r l = ,v cc =30v - - 1 . 0 * 2.5* ma a vol v o ltag e gain v cc =15v, r l =15k ? - 2 0 0 * - v/ m v t 1 l a r g e si gnal r e sponse ti m e v in =ttl logic swing, v ref =1.4v, v cc =5.0v, r l =5.1k ? , v rl =5.0v - 3 0 0 * - n s t 2 r e sponse ti m e (not e 6) v cc =5.0v, r l =5.1k ? , v rl =5.0v - 1 . 3 * - s i sink out put si nk c u rrent v i (-)=1.0v, v i (+)=0v, v 0 1.5v, v cc =5.0v 6 . 0 * - - m a v sat s a t u ratio n vo ltag e v i (-)=1.0v, v i (+)=0v, i sink 4.0m a, v cc =5.0v - - 7 0 0 m v i ol o u t p u t l e a k a g e current v i (+)=1.0v, v i (-)=0v, v 0 =5.0v v 0 =30v 0.1* 1000 na v idr d i fferent i a l input vol t a ge r a nge all v in gnd or v-suppl y (if used) v cc v *=@25 c 3
IL2903 typical performance characteristics (v cc =1.5v, t a =+25 c, (each com porator)) figure 1. input bias current versus power supply vol t age fi gure 2. output saturati on vol t age versus output sink current figure 3. output saturation voltage versus output sink current figure 4. power supply current versus power supply voltage figure 5. power supply current versus power supply voltage 4
IL2903 n s u f f i x p l as t i c di p ( m s ? 00 1b a ) sy m b o l m i n m a x a 8. 51 10. 16 b 6. 1 7 . 1 1 c 5. 33 d 0. 36 0. 56 f 1. 14 1. 78 g h j 0 10 k 2. 92 3. 81 no t e s : l 7. 62 8. 26 1. d i m e n s i o n s ?a ?, ?b ? d o n o t i n cl u d e m o l d f l as h o r p r o t r u s i o n s . m 0. 2 0 . 3 6 m a x i m u m m o l d f l a s h o r p r o t r u s i o n s 0. 25 m m ( 0 . 010) p e r s i d e . n 0. 38 d su f f i x so i c (m s - 0 1 2 a a) sy m b o l m i n m a x a 4. 8 5 b 3. 8 4 c 1. 35 1. 75 d 0. 33 0. 51 f 0. 4 1 . 2 7 g h j 0 8 no t e s : k 0. 1 0 . 2 5 1. d i m e n s i o ns a a n d b d o no t i n c l ud e m o l d f l a s h o r p r ot r u s i on . m 0. 19 0. 25 2. m a x i m u m m o l d f l a s h o r p r o t r u s i o n 0. 15 m m ( 0 . 006) p e r s i d e p 5. 8 6 . 2 fo r a ; fo r b ? 0. 25 m m ( 0 . 010) p e r s i d e . r 0. 25 0. 5 1. 27 5. 72 d i me n s i o n , mm d i me n s i o n , mm 2. 54 7. 62 a b h c k c m j f m p g d r x 4 5 se a t i n g pl a n e 0 . 25 (0 . 0 10 ) m t -t - 1 8 4 5 l h m j a b f g d se a t i n g pl a n e n k 0 . 2 5 ( 0 .01 0 ) m t -t - c 1 8 4 5 5
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