rev. pra 10/5/2004 one technology way, p.o. box 9106, norwood, ma 02062-9106, u.s.a. tel: 781/329-4700 www.analog.com information furnished by analog devi ces is believed to be accurate and reliable. however, no res ponsibility is assumed by analog devices for its use, nor for any infringements of patents or ot her rights of third parties that may result from its use. no license is granted by implicat ion or otherwise under any patent or patent rights of analog devices. trademarks and registered trademarks are the property of their respective companies. fax: 781/326-8703 ? 2004 analog devices, inc. all rights reserved. 16v low cost, high performance cmos rail-to-rail operational amplifiers preliminary technical data ad8661/ad8662/ad8664 features low offset voltage: 75 v max low input bias currents 1pa max single-supply operation: 5 to 16 volts dual-supply operation: +/- 2.5 to +/-8 volts low noise: 10 nv/ hz wide bandwidth: 4 mhz unity gain stable applications multi-pole filters sensors medical equipment consumer audio photodiode amplification adc driver general description the ad8661, ad8662 and ad8664 are single, dual and quad rail - to-rail output single supply am plifiers that use analog devices? patented digitrim? trimming technique to achieve low offset voltage. the ad 8661 family features an extended operating range with supply voltages up to 16 v. they also feature low input bias current s, wide signal bandwidth, and low input voltage and current noise. the combination of low offsets, very low input bias currents, and wide supply range make these am plifiers useful in a wide variety of applications normally associated with much higher priced jfet amplifiers. systems utilizing high impedance sensors, such as photo-diodes benef it from the combination of low input bias current, low noise, low offset and bandwidth. the wide operating voltage r ange matches today?s high performance adcs and dacs. audio applications and medical monitoring equipment c an take advantage of the high input impedance, low voltage and current noise, wide bandwidth and the lack of ?popcorn? noise (found in many other low input bias current amplifiers). the ad8661, ad8662 and ad8664 ar e specified over the extended industrial (-40 to + 125c) temperature range. the ad8661, single, is available in the tiny 8-lead lfcsp (mo- 220) 3mm x 3mm and 8-lead soic package. the ad8662, dual, is available in the 8-lead micro-soic and narrow soic surface mount packages. the ad 8664, quad, is available in 14-lead tssop and narrow 14-pin soic packages. lfcsp, msop and tssop versions are available in tape and reel only. pin configurations 8-lead lfcsp (cp-8) 3mm x 3mm 8-lead msop (rm-8) 8-lead so (r-8) 14-lead tssop (ru-14) 8-lead so (r-8) 14-lead so (r-14 ) ad8662 ad8662 ad8664 ad8664 ad8661
preliminary technical data ad8661/ad8662/ad8664 - 2- rev pra 10/5/04 electrical characteristics (v s =+5.0v, v cm = v s /2, t a =+25c unless otherwise noted) parameter symbol conditions min typ max units input characteristics offset voltage v os v sy = 8v, v cm = 3v 75 v v cm = 0.1v to 3.0v 30 300 v -40< t a < +85c 650 v -40< t a < +125c 750 v input bias current i b 0.3 1 pa -40< t a < +85c 50 pa -40< t a < +125c 300 pa input offset current i os 0.2 tbd pa -40< t a < +85c 20 pa -40< t a < +125c 75 pa input voltage range tbd 3.0 v common-mode rejection ratio cmrr v cm = 0.1v to 3.0v 80 95 db large signal voltage gain a vo r l = 10 k ? v o = 0.5v to 4.5v 70 100 v/mv offset voltage drift ? v os / ? t 3 10 v/c output characteristics output voltage high v oh i l = 1ma 4.80 4.85 v i l = 10ma 4.80 4.85 v -40c < t a < +125c 4.75 v output voltage low v ol i l = 1ma 60 120 mv v ol i l = 1ma 60 120 mv -40c < t a < +125c 150 mv output current i out 19 ma closed loop output impedance z out f=1 mhz, a v = 1 65 ? power supply power supply rejection ratio psrr v s = 5 v to 16 v 80 95 db supply current/amplifier i sy v o = 0v 1.2 1.8 ma -40< t a < +125c 2.0 ma dynamic performance slew rate sr r l =10 k ? 3 v/ s settling time t s to 0.1%, 0 v to 1v step <1 s gain bandwidth product gbp 4 mhz phase margin ?o c l = 15 pf 60 degrees noise performance peak-to-peak noise e n p-p f=0.1hz to 10 hz 2.5 v p-p voltage noise density e n f=1khz 12 nv/ hz voltage noise density e n f=10khz 10 nv/ hz current noise density i n f=1khz 0.1 pa/ hz
preliminary technical data ad8661/ad8662/ad8664 - 3- rev pra 10/5/04 electrical characteristics (v s = 8.0v, v cm = 0, t a =+25c unless otherwise noted) parameter symbol conditions min typ max units input characteristics offset voltage v os v sy = 8v, v cm = 3v 75 v v cm = -8.1v to +6.0v 30 300 v -40< t a < +85c 650 v -40< t a < +125c 750 v input bias current i b 0.3 1 pa -40< t a < +85c 50 pa -40< t a < +125c 300 pa input offset current i os 0.2 tbd pa -40< t a < +85c 20 pa -40< t a < +125c 75 pa input voltage range tbd 6 v common-mode rejection ratio cmrr v cm = -8.1v to +6.0v 80 95 db large signal voltage gain a vo r l =10 k ? v o = -7.5v to+7.5v 70 85 v/mv offset voltage drift ? v os / ? t 3 10 v/c output characteristics output voltage high v oh i l = 1ma 7.90 7.95 v i l = 10ma 7.6 7.7 v -40c < t a < +125c 7.4 v output voltage low v ol i l = 1ma -7.97 -7.93 mv i l = 10ma -7.8 -7.7 mv -40c < t a < +125c -7.5 mv output current i out 140 ma closed loop output impedance z out f=1 mhz, a v = 1 45 ? power supply power supply rejection ratio psrr v s = 5v to 16v 80 95 db supply current/amplifier i sy v o = 0v 1.5 1.8 ma -40< t a < +125c 2.0 ma dynamic performance slew rate sr r l =10 k ? 3 v/ s settling time t s to 0.1%, 0 v to 1v step <1 s gain bandwidth product gbp 4 mhz phase margin ?o c l = 15 pf 60 degrees noise performance peak-to-peak noise e n p-p f=0.1hz to 10 hz 2.5 v p-p voltage noise density e n f=1khz 12 nv/ hz voltage noise density e n f=10khz 10 nv/ hz current noise density i n f=1khz 0.1 pa/ hz
preliminary technical data ad8661/ad8662/ad8664 - 4- rev pra 10/5/04 absolute maximum ratings 1 supply volta ge .........................................................................+18v input volta ge ....................................................................g nd to vs differential input voltage .......................................................18v output short-circuit duration to gnd 2 .....observe derating curves storage temperature range r, cp, rm, ru packag e................................-65c to +150c operating temperature range ad8661/ad8662/ad 8664 ............................-40 c to +125c junction temperature range r, cp, rm, ru packag e................................-65c to +150c lead temperature range (soldering, 60 sec) ............. +300c package type t ja t jc units 8-pin lfcsp (cp) -- c/w 8-pin microsoic (rm) 210 45 c/w 8-pin soic (r) 158 43 c/w 14-pin soic (r) 120 36 c/w 14-pin tssop (ru) 180 35 c/w notes 1 absolute maximum ratings apply at 25c, unless otherwise noted. 2 t ja is specified for the wo rst-case conditions, i.e., t ja is specified for device soldered in circuit board for surface mount packages. ordering guide model temperature range package description package option branding information ad8661acp -40c to +125c 8-pin lfcsp cp-8 ad8661arz -40c to +125c 8-pin soic r-8 ad8662armz -40c to +125c 8-pin micro-soic rm-8 ad8662arz -40c to +125c 8-pin soic r-8 ad8664arz -40c to +125c 14-pin soic r-14 ad8664aruz -40c to +125c 14-pin tssop ru-14 caution esd (electrostatic discharge) sensitive device. electrosta tic charges as high as 1500 v readily accumulate on the human body and test equipment and c an discharge without detection. although this device features proprietary esd pr otection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges. therefore, proper esd prec autions are recommended to av oid performance degradation or loss of functionality.
preliminary technical data ad8661/ad8662/ad8664 - 5- rev pra 10/5/04 outline dimensions 8-lead lfcsp (cp-8 suffix) 8-lead soic (rm-8) 14-lead tssop (ru-14) 8-lead so (r-8) 14-lead so (r-14)
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