technical data KK2904 low power dual operational amplifier the kk 2904 contains two independent high gain operational amplifiers wi t h i n t e rnal frequency com p ensat i on. the t w o op-am ps operat e over a wi de voltage range from a single power supply. also use a split power supply. the devi ce has l o w power suppl y current drai n, regardl e ss of t h e power suppl y vol t a ge. the l o w power drai n al so m a kes t h e kk 2904 a good choice for bat t e ry operat i on. ordering information kk 2904n plastic kk 2904d soic KK2904s sip-8 t a = -40 to 8 5 c for all packages . w h en y our project cal l s for a t r adi t i onal op-am p funct i on, now y ou can st ream l i n e y our desi gn wi t h a si m p l e si ngl e power suppl y . use ordi nary +5v dc com m on t o pract i cal l y any di gi t a l sy st em or personal com put er appl i cat i on, wi t hout requi ri ng an ext r a 15v power suppl y just t o have t h e interface electronics you need. the KK2904 is a versatile, rugged wo rkhorse with a thousand-and-one uses, from am pl i f y i ng si gnal s from a vari et y of t r ansducers t o dc gai n bl ocks, o r an y o p - am p fu n c tio n . th e attach ed p a g e s o ffer so m e recip e s th at will h a v e y our project cooki ng i n no t i m e. ? in tern ally freq u e n c y co m p en sated fo r u n ity g a in ? large dc vol t a ge gai n : 100db ? w i de power suppl y range: 3v ~ 32v (or 1.5v ~ 16v) ? input com m on-m ode vol t a ge range i n cl udes ground ? large out put vol t a ge swi ng: 0v dc t o v cc -1.5v dc ? power drai n sui t a bl e for bat t e ry operat i on ? low i nput offset vol t a ge and offset current ? di fferent i a l i nput vol t a ge range e qual t o t h e power suppl y vol t a ge ? possible to exchange the position of pin9 for pin1 because of pin c onnect i on bei ng sy m m e t r i c (kk 2904s only) pin assignment logic diagram pin 4 = gnd pin 8=v cc 1
KK2904 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 32 16 v v idr input di fferent i a l vol t a ge r a nge (1) 32 v v icr input c o m m on m ode vol t a ge r a nge -0.3 t o 32 v i sc out put short c i rcui t durat i on c ont i nuous t j j u n c t i on tem p erat u r e plastic packages 150 c t s t g s t o r a g e tem p e r a t u r e plastic packages -55 t o +125 c i in input c u rrent , per pi n (2) 50 m a t l lead tem p erat ure, 1m m from c a se for 10 seconds 260 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. +derat i ng - pl ast i c dip: - 10 m w / c from 65 t o 125 c soic package: : - 7 m w / c from 65 t o 125 c 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
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 m a xi m u m input offset vo ltag e v o =1.4v v cc =5.0-30v; r s =0 ? v icm =0v to v cc -1.7v 9 . 0 5.0* mv ? v io / ? t input offset vol t a ge drift r s =0 ? , v cc =30v 7 . 0 v/ c i io m a xi m u m input offset current v cc = 5 . 0 v 1 5 0 50* na ? i io / ? t input offset c u rrent drift r s =0 ? , v cc =30v 1 0 pa/ c i ib m a xi m u m input b i as current v cc = 5 . 0 v 5 0 0 250* na v icr input c o m m on m ode vol t a ge r a nge v cc = 3 0 v 0 2 8 v i cc m a xi m u m power suppl y current r l = ,v cc =30v,v 0 =0v r l = ,v cc =5v,v 0 =0v 3 1.2 ma a vol m i ni m u m large si gnal open-loop vol t a ge gai n v cc =15v, r l 2k ? 15 25* v/m v v oh m i ni m u m out put hi gh- level vol t a ge swi ng v cc =30v,r l =2k ? v cc =30v,r l =10k ? 26 27 v v ol m a xi m u m out put low- level vol t a ge swi ng v cc =5v,r l =10k ? 2 0 m v c m r c o m m o n mo d e r e ject i on v cc =30v, r s =10k ? 6 5 * db psr power suppl y r e ject i on v cc = 3 0 v 6 5 * db c s c h annel separat i on f=1khz t o 20khz,v cc = 3 0 v - 1 2 0 * db i sc m a xi m u m out put short circuit to gnd v cc = 5 . 0 v 6 0 * m a i source m i ni m u m source out put current v in+ =1v, v in- =0v, v cc =15v, v 0 =0v 1 0 m a i sink m i ni m u m out put si nk current v in+ =0v, v in- =1v, v cc =15v, v 0 =15v v in+ =0v, v in- =1v, v cc =15v, v 0 =0.2v 5 10* 12* ma a v idr d i fferent i a l input vol t a ge r a nge all v in gnd or v-suppl y (i f used) v cc * v *=@25 c 3 KK2904
typical performance characteristics figure 1.input voltage range fi gure 2. open-l oop frequency fi gure 3. l a rge-si gnal frequency response fi gure 4. smal l - si gnal vol t age fol l o w er pul s e response (noni n verti n g) figure 5. power supply current versus power supply voltage figure 6. input bias current versus power supply vol t age 4 KK2904
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 KK2904
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