preliminary techn ical data information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents 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 analog devices. one technology way, po box 9106, norwood, ma 02062- 9106, usa tel: 781/329 - 4700 www.analog.com fax: 781/326 - 8703 ? analog devices, inc., 2002 - 1 - rev. pra 9/27/2002 precision low noise cmos rail-to-rail input/output operational amplifiers preliminary technical data AD8605ACB* features low offset v oltage: 65 m v max low offset variation: 300 m v max for any cmv and vsy low input bias currents: 1pa max low noise: 8 nv/ ? hz wide bandwidth: 10 mhz unity gain stable single - supply operation: 2.7 to 6 volts applications photodiode amplification battery powered instr umentation medical instruments multi - pole filters sensors portable audio devices general description the AD8605ACB is a rail - to - rail input and output single supply amplifier featuring very low offset voltage, very low input bias current, low voltage and current noise and wide signal bandwidth. ad8605 utilizes patented digitrim technology to achieve superior precision without laser trimming. the combination of very high performance features makes the se amplifiers useful in a wide variety of applications. filters, integrators, photo - diode amplifiers and high impedance sensors all benefit from the performance of the ad8605. audio and other ac applications benefit from the wide bandwidth and low distorti on. applications for these amplifiers include laser diode control loops and optical sensing, portable and loop - powered instrumentation, audio amplification for portable devices and asic input/output amplifiers. the AD8605ACB is specified over the extende d industrial ( - 40 to +125c) temperature range. the AD8605ACB is available in the tiny 5 - bump microcsp package and offers the smallest available footprint for any surface - mountable operational amplifier. microcsp versions are available in tape and reel on ly. refer to the ad8605/ad8606/ad8608 family datasheet for the released ad8605 version in sot package and for dual/quad versions. pin configurations ad8605 microcsp topview (bump side down ) pin no. functionality 1 out 2 v - 3 +in 4 - in 5 v+ pin 1 id entifier 1 5 2 3 4 *protected by us patent no. 5,969,657; other patents pending
prel iminary technical data ad8605 - 2 - rev. p ra 9/27/2002 electrical characteristics (v s =+2.7v, v cm = v s /2, t a =+25c unless otherwise noted) parameter symbol conditions min typ max units input characteristics offset voltage v os vs=3.5v,v cm = 1v, v cm = 3v 20 65 m v vs=2.7v, v cm = 0v to 2.7v 80 300 m v - 40c < t a < +125c 750 m v input bias current i b 0.2 1 pa - 40c < t a < +85c 50 pa - 40c < t a < +125c 250 pa input offset current i os 0.1 0.5 pa - 40c < t a < +85c 20 pa - 40c < t a < +125c 75 pa input voltage range 0 2.7 v common - mode rejection ratio cmrr v cm = 0v to 2.7v 80 95 db - 40c < t a < +125c 70 85 db large signal voltage gain a vo r l = 2 k w v o = 0.5v to 2.2v 110 350 v/mv offset voltage drift d v os / d t 1 4.5 m v/c output characteristics output voltage high v oh i l = 1ma 2.6 2.66 v - 40c < t a < +125c 2.6 v output voltage low v ol i l = 1ma 25 40 mv - 40c < t a < +125c 50 mv output current i out 30 ma closed loop output impedance z out f=1 mhz, a v = 1 12 w power supply power supply rejection ratio psrr v s = 2.7 v to 5.5 v 80 95 db - 40c < t a < +125c 70 90 db supply current/amplifier i sy v o = 0v 1.15 1.4 ma - 40c < t a < +125c 1.5 ma dynamic performance slew rate sr r l =2 k w 5 v/ m s settling time t s to 0.01% <0.5 m s gain bandwidth product gbp 9 mhz phase margin ?o 50 degrees noise performance voltage noise e n p - p f = 0.1hz to 10hz 2.3 3.5 m v p - p volta ge noise density e n f = 1khz 8 12 nv/ ? hz voltage noise density e n f = 10khz 6.5 nv/ ? hz current noise density i n f = 1khz 0.01 pa/ ? hz
preliminary technical data ad8605 rev. pra 9/27/2002 - 3 - electrical characteristics (@ v s =+5.0v, v cm = v s /2, t a =+25? unless otherwise noted) parameter symbol condition s min typ max units input characteristics offset voltage v os vs=3.5v,v cm = 1v, v cm = 3v 20 65 m v vs=5v, v cm = 0v to 5v 80 300 m v - 40? t a < +125? 750 m v input bias current i b 0.2 1 pa - 40? t a < +85? 50 pa - 40? t a < +125? 200 pa input offset current i os 0.1 0.5 pa - 40? t a < +85? 20 pa - 40? t a < +125? 75 pa input voltage range 0 5 v common - mode rejection ratio cmrr v cm = 0v to 5v 85 100 db - 40? t a < +125? 75 90 db large signal voltage gain a vo v o = 0.5v to 4.5v, r l = 2 k w 300 1000 v/mv offset voltage drift d v os / d t 1 4.5 m v/? output characteristics output voltage high v oh i l = 1ma 4.96 4.98 v i l = 10ma 4.7 4.79 v - 40? t a < +125? 4.6 v output voltage low v ol i l = 1ma 20 40 mv output voltage high v ol i l = 1 0ma 170 210 mv - 40? t a < +125? 290 mv output current i out 80 ma closed loop output impedance z out f=1 mhz, a v = 1 10 w power supply power supply rejection ratio psrr v s = 2.7 v to 5.5 v 80 95 db 70 90 db supply current/amplifier i sy v o = 0v 1 1.2 ma - 40? t a < +125? 1.4 ma dynamic performance slew rate sr r l =2 k w 5 v/ m s settling time t s to 0.01% <1 m s full power bandwidth bwp <1% distortion 360 khz gain bandwidth product gbp 10 mhz phase margin ? 65 degrees noise performance voltage noise e n p - p f = 0.1hz to 10hz 2.3 3.5 m v p - p voltage noise density e n f=1khz 8 12 nv/ hz voltage noise density e n f=10khz 6.5 nv/ hz current noise density i n f=1khz 0.01 pa/ hz
preliminary technical data ad8605 - 4 - rev. p ra 9/27/2002 absolute maximum ratings 1 supply voltage ................................ ................................ ............ +6v i nput voltage ................................ ................................ ..... gnd to vs differential input voltage ................................ ........................... 6v output short - circuit duration to gnd 2 ... observe derating curves storage temperature range cb package ................................ ..................... - 65c to +150c operating temperature range ad8605 ................................ .......................... - 40c to +125c junction temperature range cb packag e ................................ ..................... - 65c to +150c lead temperature range (soldering, 60 sec) ........................ +300c package type q ja q jc units 5 - bump microcsp (cb) 125 3 -- c/w notes 1 absolute maximum ratings apply at 25c, unless otherwise noted. 2 q ja is specified for the worst - case conditions, i.e., q ja is specified for device soldered in circuit board for surface mount packages. 3 estimated value. full study in process ordering guide model temperature range package description package option AD8605ACB - 40c to +125c 5 bump - microcsp cb - 5
preliminary technical data ad8605 rev. pra 9/27/2002 - 5 - ad8605 microcsp package dimension drawing top view (bump side up , all dimensions in mm) bump locations referenced to die center ad8605 microcsp side view (all dimensions in mm) pin no. x (um) y (um) 1 250 433 2 0 0 3 250 - 433 4 - 250 - 433 5 - 250 433 1 5 4 2 3 1.33 0.94 0.5 0.23 0.22 0.87 0.5 0.18 0.36 0.5 0.14
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