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ec56 1 1 high slew rate rail - to - rail single operational amplifiers with otp 4g10n rev. f001 page 1 o f 1 1 nc v s+ v s+ in - in - fe a tures ? wide supply voltage range 4.75 v ~ 20 v ? input range 500mv beyond the rails ? unity - gain stable ? rail - to - rail output swi n g ? high slew rate 4 0v / s ? gbwp 2 0 mhz ? 30mhz - 3 d b bandwidth ? ultra - small package sot - 25 tsot25 sot - 26 tsot - 2 6 and tssop - 8 appl i c a tions ? tft - lcd reference driver ? touch - screen display ? wireless l ans ? personal communication devices ? direct access arrang e ment ? personal digital assist a nt (pda) ? active filter ? sampling adc amplifier ? adc/ d ac buff er ? electronic notebook from 4.75 v to 20 v. it p r ovides 0.5v beyond the supply rails of common mode input range and capability of rail - to - rail output swing as well. this enabl e s the amplifier to offer m a xim u m dynamic r a nge at any supply voltage among man y applications. a 20mhz ga i n bandwidth product all o ws ec56 1 1 to perform more stable than other d evices in in t ernet applications. with featu r es of 4 0v / s high sl e w rate and 200ns of f a st settling ti me, as well as 100ma (sink and source) of high output dr iv ing capability, the ec56 1 1 is ideal for the requirements of flat pa n el thin film transis t or liquid crystal displ a ys (tft - l cd) panel grayscale r e ference buf f ers application. due to insensitive to power supply variation, ec56 1 1 offers flex i bility of use in m ultitude of applica t ions such as b attery power, portable devices and anywhere low power consumption is concer n ed. with standard operatio n al amplifier pin assignment, the ec56 1 1 is offered in a space saving 6 - pin sot - 2 6 package a n d specified over the - 40 c to +85 c temperature range. pin ass i gnment 5 4 6 5 4 ? office automation 1 2 3 1 2 3 ? portable electroni cs v o ut v s - i n + v o u t vs - i n + general description the ec56 1 1 is a r ail - to - rail o ne chann e l operational amplifier with wide supply ran g e ts sop - 8 sot25/tsot25 so t 26 /tsot26
ec56 1 1 high slew rate rail - to - rail single operational amplifiers with otp 4g10n rev. f001 page 2 o f 1 1 maximum c o ntinuo u s ou t put c u rr e nt 100ma op e rating t e mperature - 40c to +85c lead t emp er ature 260 c functional pin description pin name pin fu nction v out operational amplifier output vs - ic ground or negative power supply in+ operational amplifier non - inverting input in - op e ratio n al amplifier inver t ing input v s+ supply v ol t a g e vcc can r a nge from 6v t o 18v a b s o l u t e m a x i m u m r a t i n g s (t a = 2 5 c ) values beyond absolute max i mum r a tings may c ause permanent damage to the device. these a r e stress ratin g s only; functional device operation is not implied. exposure to amr conditions for extended periods may affect device r eliability. supply voltag e between v s+ and vs - + 20 v storage t e m perature - 6 5 c to +1 5 0c input voltage vs - - 0.5v, v s + + 0.5v maximum d i e t emperature +1 2 5 c i m porta n t n ot e : a l l par a meters h a v i n g min/ m ax specif i cat i ons are guar a nte e d. t y pic a l v alu e s are for i n fo r mat i on p ur p oses o n l y . unless othe r w ise note d , all tes t s are at the s pecif i ed te mper a ture a nd are puls e d t e st s , ther e fore: tj = tc = t a electr i cal characteristics v s + = +5v, v s - = - 5v, r l = 10k ? a nd c l = 1 0 pf to 0v, t a = 25 c u nless o the r w ise specif i ed. parameter de s cription condition min t y p max units input c h ara c teri s tics v os inp u t offset v o lta g e v cm = 0v 2 12 mv tcv os a v era g e offset v o lta g e drift [ 1 ] 5 v/c i b inp u t bias curre n t v cm = 0 v 2 50 na r in i np u t i m peda n ce 1 g c in i np u t capacitance 1 . 35 pf cmir c o m m on - m o de i n p u t ran g e - 5 . 0 + 5 .5 v cmrr c o m m on - m o de re j ection ratio for v in f rom - 5.5v to 5 . 5v 50 70 db a vol open - loop gain 0.5v Q vout Q 4.5v 75 90 db output characteri stics v ol ou t put sw i n g l o w - v s +=8v,v s - = - 8v,i l = - 5ma - 7 . 9 2 7 . 8 5 v v oh ou t put sw i n g hi g h v s +=8v,v s - = - 8v,i l =5ma 7.85 7 . 92 v i sc sh o rt circ u it c u rre n t (note 1) 3 0 0 m a i out ou t pu t c u r r e n t 10 0 m a i peak i peak c u r r e n t v s + =14v, v s - =0v (n ote 2 ) source current: i load v out to gnd 45 0 m a sink current: i load v out to v dd power supply performance psrr power s u p p ly re j ecti o n ratio v s is m oved fr o m 2.25v to 7 .7 5 v 62 80 db i s s u pply c u r rent no l o ad 3 m a
ec56 1 1 high slew rate rail - to - rail single operational amplifiers with otp 4g10n rev. f001 page 3 o f 1 1 note 1: short circuit current is tested with one output at a time. note 2: i peak current is for a 1s pulsed current only , not to exceed thermal characteristics of package. figu r e (a) input o f fset v ol t age distribution electr i cal charac teristics v s + = +5v, v s - = - 5v, r l = 10k? a nd c l = 1 0 pf to 0v, t a = 25 c u nless o the r w ise specif i ed. parameter de s cription condition min t y p max units d y namic pe r forma n ce sr slew rate [2] v s +=8v,v s - = - 8v, - 4.0v Q v out Q 20% to 80% 30 40 v/s t s settli n g to + 0 . 1 % (av = +1) (av = +1), v o =2v step 50 0 ns b w - 3 d b b a n d w i d t h r l = 10k , c l =10pf 30 m hz g b wp gai n - ba n dw i d th p r od u ct r l = 10 k , cl= 1 0 p f 20 m hz pm phase margin r l = 10k, c l = 10 pf 50 de g ree s cs c h a n nel s e pa r ation f = 1 m hz 75 db temper a tu r e performa nc e te m p ther m al shu t d o w n 1 5 0 1. measur e d over o p e r ati n g temperature ra n ge 2. slew rate i s me a s u red o n ris i ng a n d falling e d g e s figure (b) rail to rail c a p ability f i gure (c) in p ut beyond the rails si g nal typical perf or mance cu r v es -15 -13 -11 -9 -7 -5 -3 -1 1 3 5 7 9 11 13 15 0 250 500 750 1000 1250 1500 1750 2000 2250 2500 quantity (amplifiers) input offset (mv)
ec56 1 1 high slew rate rail - to - rail single operational amplifiers with otp 4g10n rev. f001 page 4 o f 1 1 figure (d) l arge signal t ransient response applic a tions inform a t ion product de s cription the ec 5 6 1 1 rail - t o - rail o n e ch a nne l a mplifier is built on an a dvanced hi g h voltage c m os pr o c e ss. its beyond rails input c a pability and full swi n g of output ran g e makes itself an ideal amp l ifier for use in a wid e r a nge of ge ne ral - p u rp o se appl i c atio n s . the featur e s of 4 0v/s h igh slew rate, fast settling time, 30mhz of gbwp as well a s high outp u t driving cap ab ility have proven the ec 5 6 1 1 a g o od voltage ref e rence buffer i n tft - lc d for grayscale refere n c e ap plicati o ns. h i gh p h ase marg i n a n d extremely l o w p o w e r consumpti o n m a ke the ec 56 1 1 ideal for c o n n e c ted in voltage foll o w e r mo d e for l o w p o w e r high d rive appl i c atio n s . supply voltage, input r a nge and o u tput s w i ng the ec56 1 1 can b e o p erat e d with a si n gle nomi n al wide supply voltage ra n ging from 6v to 18v wi th stable perf o rma n ce over operati n g temperature of - 40 c t o + 8 5 c. with 500mv greater than rail - to - rail input common mode voltage range and 70db of common mode rejection ratio, t he ec5 6 1 1 allows a w id e ra n ge se n s ing a mo n g many appl ic ations wit ho u t having any concerns over exceed i ng the r a nge and no c o mpr o mise in acc u r a cy. the out p ut sw i n g s of t he ec56 1 1 typically extend to within 80mv of p ositive a n d negative su p ply rails with l oad curr e nts of 5ma. the output voltage swi n g can be even clos e r to t he su p ply rai l s b y merely d e cre a si n g the l oad curr e nt. figure 1 shows the input and output waveforms for the device in the unity - gain configuration. the amplifier is operated under 5v supply with a 10k load connected to gnd. the input is a 10vp - p sinusoid. an approximately 9.985 vp - p of output voltage swing can be easily achieved. figure (e) large signal t ransient response figure 1. ope r ation w i t h r a i l - to - rail i n put a n d output outp u t sho r t circuit cu r rent li m it a +/ - 3 0 0ma short circuit c u rr e nt will be limited by t he ec56 1 1 if the output is dir e ctly s h orted to the positive or t h e negative supply. for a n indefinitely output sh o rt circuit, the power d i ss i pation c o u l d easily i n cre a se such t h at the device may be dam a ged. t h e internal m etal interco n necti o ns a re well d e si g n e d to prevent the output contin u o u s c u rr e nt from exceed i ng +/ - 1 00ma s u ch that the maximum rel i ability can be well ma i ntained. outp u t pha s e re v ersal the ec5 6 1 1 is de sig n ed to prevent its output from be i ng ph a se reversal as l ong a s the i n put voltage is limited from v s - - 0.5v to v s+ + 0.5v. figure 2 s ho ws a p hoto of the device o utput with its input voltage driven b e yond the supply rails. although the phase of the devic e 's o utput will not be revers e d, the input's over - volta g e shou l d be avoided. an impr o p e r inp u t voltage ex c ee d s su p ply ra n ge by m o re than 0.6v may r e sult in an ov e r str e ss dam ag e.
ec56 1 1 high slew rate rail - to - rail single operational amplifiers with otp 4g10n rev. f001 page 5 o f 1 1 figure 2. o p eration w i th b e y ond - the rails inp ut p o w e r dissipation the ec56 1 1 is d e s i gn e d for maxim u m output c u rr e nt cap a bility. even thou g h mom e ntary output sh o rted to g ro u nd ca u s e s little damage to device. for the hi g h drive a m plifi e r ec 5 6 1 1, it i s p o ssible to exce e d the 'a b so l ute - maxi m um juncti o n temperature' und e r c e rtain load c u rr e nt conditi o ns. therefore, it is imp o rtant to ca l c ulate t h e maxim u m juncti o n t e mperature for th e a p plicati o n to determ i ne if load c o nditio n s need to be modified for the amplifier to remain in the safe o pe rating a rea. t he maxim u m pow e r d i ss i pation al l ow e d in a pack a ge is d etermi n ed ac c o rdi n g to: p dmax = wh e re: t jmax = maximum junction temperature t a m ax = maximum ambie n t temperature ja = t h e rm a l res i sta n ce of the packa g e p dmax = maximum pow e r dissi p ation in the pack age. the maxim u m pow e r diss i pation act u ally produced b y an ic is t h e total qui e s ce n t supply current times the total pow e r supply voltag e , plus the po wer i n the ic due to the lo a ds, or: p d m ax = i [ v s * i s m ax + (v s+ C v o ) * i l ] wh e n s o urci n g, and p d m ax = i [ v s * i s m ax + ( v o C v s - ) * i l ] wh e n s i n k ing. wh e re: i = 1 to 1 v s = total supply voltage i smax = maximum supply current per a mplifier v o = maximum output voltage of the a p plicati o n i l = load current r l = l o ad r e sist a nce = ( v s+ C v o )/ i l = ( v o C v s - )/ i l a cal culati o n for r l to prevent device from over h eat can b e eas i ly solved by setting the two p dm a x equati o ns eq ual to each other. dri v ing ca p aciti v e loads the ec56 1 1 is desig n ed to drive a wide r a nge of ca p acitive l o ads. in a dd ition, the output c u rrent ha ndl i ng ca p ability of the device all o ws f o r go o d sl e wing c h aracter i stics ev en with large cap a citive loa d s. the combinati o n of these features m a ke the ec56 1 1 ide a lly for applications s u ch as tft l cd panel gra y scale refer e nce voltage buff e rs, adc i n put amplif iers, etc. as load ca p acita n c e i n creases, h o w e ver, the - 3 d b ban d width o f the device will d e cre a se a nd t h e pe a king i ncr e ase. depending on the application, it must be necessary to reduce peaking and to improve device stability. to improve device stability , a small v a l u e o f ser i es res i st o r (usually between 5 a n d 50 ) must be pl a c ed in ser i es with the output. the advant a ge is that it improv e s the settling a n d overshooti n g perf o rma n c e with very large capacitive loads. figure 3. shows the typical applicati on configuration. figure 3 . typical application configuration. p o w e r su p ply b y passing and printed ci r cuit board l a y out with high p h ase m a rgin, the ec56 1 1 perfor m s stab l e gain at high freque n cy. like any high - freq u e n cy device, g o od l ayout of the p rinte d circuit board u s ually com e s with optimum p e rforma n c e. g rou n d pla n e co n s tr u c tion is highly recomme n ded, l ead le n gt h s sh o uld be as sh o rt as possible and the power s u pply pins m u st b e well byp a ssed to r e d u ce the r i sk of oscillation. fo r normal sin g l e supply operation, where the v s - pin is conn e cted to ground, a 0.1 f ceram i c ca p acit o r sh o uld be placed from v s+ pin to v s - pin as a byp a ss i ng ca p acit o r. a 4. 7 f tantal u m c a p a citor sh o uld then be co n n e c t e d in parallel, placed in the regi o n of the amplifier. one 4.7f ca p acitor may be us e d for m ultiple dev ic es. th i s s a me cap a cit o r comb i nation sh o uld be p l ac e d at each supply pin to gro u nd if split suppl i es a re to be us e d. ja amax jmax t - t
ec56 1 1 high slew rate rail - to - rail single operational amplifiers with otp 4g10n rev. f001 page 6 o f 1 1 ordering inform a tion p art no t op mark p ackage type ec5 6 1 1b 2 - g ec5 6 1 1 xxxxx so t - 25 gr e en p ackage xxxx is lot code ec5 6 1 1 t2 - g ec56 1 1 xxxxx t sot - 2 5 green package xxxx is lot code ec5 6 1 1b 3 - g ec5 6 1 1 xxxxx so t - 26 gr e en p ackage xxxx is lot code ec5 6 1 1 t 3 - g ec56 1 1 xxxxx t sot - 26 green package xxxx is lot code ec5 6 1 1 i - g ec5 6 1 1 xxxxx yyww tssop - 8 gr e en p ackage xxxx is lot code yyww is date code
ec56 1 1 high slew rate rail - to - rail single operational amplifiers with otp 4g10n rev. f001 page 7 o f 1 1 outline di m e nsions (di m ensions shown in m illi m eters) so t - 26
ec56 1 1 high slew rate rail - to - rail single operational amplifiers with otp 4g10n rev. f001 page 8 o f 1 1 so t - 25
ec56 1 1 high slew rate rail - to - rail single operational amplifiers with otp 4g10n rev. f001 page 9 o f 1 1 tssop - 8
ec56 1 1 high slew rate rail - to - rail single operational amplifiers with otp 4g10n rev. f001 page 10 o f 1 1 ts o t - 26
ec56 1 1 high slew rate rail - to - rail single operational amplifiers with otp 4g10n rev. f001 page 11 o f 1 1 ts o t - 25 variation (all di mensions shown in mm) symbol min. nom. max. a 0.75 0 - 0.800 a1 0.000 - 0.050 a2 0.700 0.750 0.775 b 0.350 - 0.500 c 0.100 - 0.200 d 2.800 2.900 3.000 e 2.600 2.800 3.000 e1 1.500 1.600 1.700 e 0.950 bsc e1 1.900 bsc l 0.370 0.450 0.600 l1 0.60 0 ref l2 0.250 bsc r 0.100 - - r1 0.100 - 0.250 0 4 8 1 4 10 12 note 1. jedec out line n/a

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