1 ? fn7504.0 caution: these devices are sensitive to electrosta tic discharge; follow proper ic handling procedures. 1-888-intersil or 321-724-7143 | intersil (and design) is a registered trademark of intersil americas inc. copyright ? intersil americas inc. 2002-2004. all rights reserved. elantec is a registered trademark of elantec semiconductor, inc. all other trademarks mentioned are the property of their respective owners. preliminary el8178 micropower single s upply rail-to-rail input-output precision op amp the el8178 is a micropower pr ecision operational amplifier optimized for single supply operation at 5v and can operate down to 2.4v. the el8178 draws minimal supply current while meeting excellent dc-accuracy noise and output drive specifications. competing devices seriously degrade these parameters to achieve micropower supply current. offset current, voltage and current noise, slew rate, and gain-bandwidth product are all two to ten times better than on previous micropower op amps. the 1/f corner of the voltage no ise spectrum is at 1khz. this results in low frequency noise performance which can only be found on devices with an order of magnitude higher supply current. the el8178 can be operated from one lithium cell or two ni-cd batteries. the input range includes both positive and negative rail. the output swings to both rails. features ? 50a supply current ? 100v max offset voltage ? 1pa input bias current ? 400khz gain-bandwidth product ? 0.13v/s slew rate ? single supply operation down to 2.4v ? rail-to-rail input and output ? output sources and si nks 26ma load current applications ? battery- or solar-powered systems ? 4ma to 25ma current loops ? handheld consumer products ? medical devices ? thermocouple amplifiers ? photodiode pre amps ? ph probe amplifiers pinouts el8178 (6-pin sot-23) top view el8278* (10-pin msop, dfn) top view ordering information part number package tape & reel pkg. dwg. # el8178aiw-t7 6-pin sot-23 7? (3k pcs) mdp0038 el8178aiw-t7a 6-pin sot-23 7? (250 pcs) mdp0038 el8178biw-t7 6-pin sot-23 7? (3k pcs) mdp0038 el8178biw-t7a 6-pin sot-23 7? (250 pcs) mdp0038 EL8278IY (note) 10-pin msop - mdp0043 el8278il (note) 10-pin dfn - mdp0047 note: contact factory for availability 1 2 3 6 4 5 +- out vs- in+ vs+ enable in- - + - + ina+ cea vs- ceb ina- outa vs+ outb inb+ inb- 1 2 3 4 10 9 8 7 5 6 *coming soon data sheet november 16, 2004
2 fn7504.0 november 16, 2004 absolute maxi mum ratings (t a = 25c) supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5v differential input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5v input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5v to v s + 0.5v output short-circuit duration . . . . . . . . . . . . . . . . . . . . . . .indefinite ambient operating temperature range . . . . . . . . . .-40c to +85c storage temperature range . . . . . . . . . . . . . . . . . .-65c to +150c caution: stresses above those listed in ?absolute maximum ratings? may cause permanent damage to the device. this is a stress o nly rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. important note: all parameters having min/max specifications are guaranteed. typical values are for information purposes only. u nless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: t j = t c = t a electrical specifications v s = 5v, 0v, v cm = 0.1v, v o = 1.4v, t a = 25c unless otherwise specified. parameter description conditions min typ max unit v os input offset voltage grade a 50 100 v grade b 110 400 v long term input offset voltage stability tbd v/mo input offset drift vs temperature 1.5 v/c i b input bias current 150pa e n input noise voltage density f o = 1khz 25 nv/ hz i n input noise current density f o = 1khz 0.1 pa/ hz cmir input voltage range guaranteed by cmrr test 0 5 v cmrr input voltage range 0 5 v cmrr common-mode rejection ratio v cm = 0v to 5v 80 100 db psrr power supply rejection ratio v s = 3.3v to 5v 80 100 db a vol large signal voltage gain v o = 0.5v to 4.5v, r l = 100k ? 100 400 v/mv v o = 0.5v to 4.5v, r l = 1k ? 15 v/mv v out maximum output voltage swing output low, r l = 100k ? 36mv output low, r l = 1k ? 130 200 mv output high, r l = 100k ? 4.994 4.997 v output high, r l = 1k ? 4.8 4.88 v sr slew rate 0.09 0.13 0.16 v/s gbw gain bandwidth product f o = 100khz 400 khz i s,on supply current, enabled 40 50 75 a i s,off supply current, disabled 310a i o + short circuit output current r l = 10 ? 18 31 ma i o - short circuit output current r l = 10 ? 17 26 ma v s minimum supply voltage 2.2 2.4 v v inh enable pin high level 2v v inl enable pin low level 0.8 v i enh enable pin input current v en = 5v 0.25 0.7 2 a i enl enable pin input current v en = 0v -0.5 0 +0.5 a ? v os ? time ------------------ ? v os ? t --------------- - el8178
3 fn7504.0 november 16, 2004 typical performance curves figure 1. frequency response vs supply voltage f igure 2. frequency response vs supply voltage figure 3. supply current vs supply voltage f igure 4. package power dissipation vs ambient temperature figure 5. package power dissipation vs ambient temperature a v =1 r l =10k ? c l =2.7pf r f =100 ? r g =open 100 10k 100k 1m -5 frequency (hz) magnitude (db) 1k -4 -3 -2 1 2 -1 0 v s =1.0v v s =2.5v v s =1.25v a v =10 r l =10k ? c l =2.7pf r f =178 ? r g =19.6 ? 100 10k 100k 1m 0 frequency (hz) magnitude (db) 1k 3 6 9 18 21 12 15 v s =1.0v v s =2.5v v s =1.25v 234 5.5 0 supply voltage (v) supply current (a) 2.5 10 20 50 60 30 40 3.5 5 4.5 jedec jesd51-3 low effective thermal conductivity test board 391mw ja =256 c /w sot 2 3- 6 0 100 125 150 0 ambient temperature (c) power dissipation (w) 50 0.05 0.1 0.15 0.4 0.45 0.2 0.3 25 75 85 0.35 0.25 jedec jesd51-7 high effective thermal conductivity test board 435mw j a = 2 3 0 c / w s o t 2 3 - 6 0 100 125 150 0 ambient temperature (c) power dissipation (w) 50 0.05 0.1 0.15 0.45 0.5 0.2 0.3 25 75 85 0.35 0.25 0.4 el8178
4 all intersil u.s. products are manufactured, asse mbled and tested utilizing iso9000 quality systems. intersil corporation?s quality certifications ca n be viewed at www.intersil.com/design/quality intersil products are sold by description only. intersil corpor ation reserves the right to make changes in circuit design, soft ware and/or specifications at any time without notice. accordingly, the reader is cautioned to verify that data sheets are current before placing orders. information furnishe d by intersil is believed to be accurate and reliable. however, no responsibility is assumed by intersil or its subsidiaries for its use; nor for any infringements of paten ts or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of intersil or its subsidiari es. for information regarding intersil corporation and its products, see www.intersil.com fn7504.0 november 16, 2004 el8178
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