high temperature, low power operational amplifier preliminary technical data ad8634 rev. pra document feedback 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 that may result from its use. specifications subject to change without notice. no license is granted by implication or otherwise under any patent or patent rights of analog devices. trademarks and registered trademarks are the property of their respective owners. one technology way, p.o. box 9106, norwood, ma 02062-9106, u.s.a. tel: 781.329.4700 ?2013 analog devices, inc. all rights reserved. technical support www.analog.com features extreme high temperature operation ?40c to +210c, flatpack package ?40c to +175c, soic package rail-to-rail output low power: 1 ma maximum gain bandwidth product: 10 mhz at a v = 100 typical low offset voltage: 200 v maximum unity-gain stable high slew rate: 2.5 v/s typical low noise: 4 nv/hz typical at 1 khz applications downhole drilling and instrumentation avionics heavy industrial high temperature environments general description the ad8634 is a single-supply, 10 mhz bandwidth, dual amplifier that features rail-to-rail outputs. the ad8634 is guaranteed to operate from 3 v to 30 v (or 1.5 v to 15 v) and at very high temperatures. the ad8634 is well suited for single-supply applications that require both ac and precision dc performance. the combination of wide bandwidth, low noise, and precision makes the ad8634 useful in a wide variety of applications, including filters and interfacing with a variety of sensors. this dual-channel op amp is offered in an 8-lead soic plastic package with an operating temperature range of ?40c to +175c. it is also available in an 8-lead ceramic flat package (flatpack) with an operating temperature range of ?40c to +210c. both packages are designed for robustness at extreme temperatures and are qualified for 1000 hours of operation at the maximum temperature rating. pin configuration out a 1 ?in a 2 +in a 3 v? 4 v+ 8 out b 7 ?in b 6 +in b 5 ad8634 top view (not to scale) 11524-001 figure 1. soic and flatpack pinout the ad8634 is a member of a growing series of high temperature qualified products offered by analog devices, inc. for a complete selection table of available high temperature products, see the high temperature product list and qualification data available at www.analog.com/hightemp .
ad8634 preliminary technical data rev. pra | page 2 of 7 table of contents features .............................................................................................. 1 ? applications ....................................................................................... 1 ? general description ......................................................................... 1 ? pin configuration ............................................................................. 1 ? revision history .......................... error! bookmark not defined. ? specifications ..................................................................................... 3 ? electrical characteristics, v sy = 15.0 v................................... 3 ? electrical characteristics, v sy = +3.0 v ..................................... 4 ? absolute maximum ratings ............................................................5 ? thermal resistance .......................................................................5 ? esd caution...................................................................................5 ? typical performance characteristics ........ error! bookmark not defined. ? theory of operation ................... error! bookmark not defined. ? outline dimensions ..........................................................................6 ? ordering guide .............................................................................6 ?
preliminary technical data ad8634 rev. pra | page 3 of 7 specifications electrical characteristics, v sy = 15.0 v v sy = 15.0 v, v cm = 0 v, v out = 0 v, t min t a t max , unless otherwise noted. table 1. parameter symbol test conditions soic package ?40c t a +175c flatpack package ?40c t a +210c unit min typ max min typ max input characteristics offset voltage v os 200 200 v offset voltage drift v os /t 0.6 0.8 v/c offset voltage matching t a = 175c 150 150 v input bias current i b ?200 +200 ?200 +200 na input offset current i os 30 30 na input voltage range ?14.7 +14.7 ?14.5 +14.5 v common-mode rejection ratio cmrr v cm = ?14.0 v to +14.0 v 105 120 100 115 db large signal voltage gain a vo ?13.5 v v o +13.5 v, r l = 2 k 104 112 100 108 db input impedance differential tbd tbd k||pf common-mode tbd tbd m||pf output characteristics output voltage high v oh r l = 10 k to v cm 14.8 14.90 14.8 14.90 v r l = 2 k to v cm 14.0 14.5 14.0 14.5 v r l = 2 k to v cm , t a = t max 14.60 14.75 14.60 14.75 v output voltage low v ol r l = 10 k to v cm ?14.95 ?14.8 ?14.95 ?14.8 v r l = 2 k to v cm ?14.8 ?14.70 ?14.75 ?14.65 v short-circuit current i sc +100/?20 +105/?18 ma power supply power supply rejection ratio psrr v sy = 2 v to 18 v 105 115 103 113 db supply current per amplifier i sy i o = 0 ma, t a = t max 1.0 1.2 1.1 1.3 ma dynamic performance slew rate sr r l = 2 k 3.6 3.6 v/s gain bandwidth product gbp v in = 5 mv p-p, r l = 10 k, a v = 100 9.7 9.7 mhz unity-gain crossover ugc v in = 5 mv p-p, r l = 10 k, a v = 1 2.5 2.5 mhz ?3 db closed-loop bandwidth ?3db v in = 5 mv p-p, a v = 1 4.9 4.9 mhz phase margin m 84 82 degrees noise performance voltage noise e n p-p 0.1 hz to 10 hz 0.13 0.13 v p-p voltage noise density e n f = 1 khz 4.0 4.0 nv/hz current noise density i n 0.6 0.6 pa/hz
ad8634 preliminary technical data rev. pra | page 4 of 7 electrical characteristics, v sy = +3.0 v v sy = +3.0 v, v cm = +1.5 v, v out = ?1.5 v, t min t a t max , unless otherwise noted. table 2. parameter symbol test conditions soic package ?40c t a +175c flatpack package ?40c t a +210c unit min typ max min typ max input characteristics offset voltage v os 200 200 v offset voltage drift v os /t 0.6 0.8 v/c offset voltage matching t a = 175c 150 150 v input bias current i b ?200 +200 ?200 +200 na input offset current i os 30 30 na input voltage range 0.3 2.7 0.5 2.5 v common-mode rejection ratio cmrr v cm = 0.3 v to 2.7 v 60 65 55 60 db large signal voltage gain a vo 0.5 v v o 2.5 v, r l = 2 k 104 112 100 108 db input impedance differential tbd tbd k||pf common-mode tbd tbd m||pf output characteristics output voltage high v oh r l = 10 k to v cm 2.8 2.90 2.8 2.90 v r l = 2 k to v cm 2.0 2.5 2.0 2.5 v r l = 2 k to v cm , t a = t max 2.60 2.75 2.60 2.75 v output voltage low v ol r l = 10 k to v cm 50 200 50 200 mv r l = 2 k to v cm 200 300 250 350 mv short-circuit current i sc 15 15 ma power supply power supply rejection ratio psrr v sy = 1.25 v to 1.75 v 97 102 95 100 db supply current per amplifier i sy i o = 0 ma, t a = t max 0.9 1.1 1.0 1.2 ma dynamic performance slew rate sr r l = 2 k 3.5 3.5 v/s gain bandwidth product gbp v in = 5 mv p-p, r l = 10 k, a v = 100 9.7 9.7 mhz unity-gain crossover ugc v in = 5 mv p-p, r l = 10 k, a v = 1 2.5 2.5 mhz ?3 db closed-loop bandwidth ?3db v in = 5 mv p-p, a v = 1 4.9 4.9 mhz phase margin m 84 82 degrees noise performance voltage noise e n p-p 0.1 hz to 10 hz 0.13 0.13 v p-p voltage noise density e n f = 1 khz 4.0 4.0 nv/hz current noise density i n 0.6 0.6 pa/hz
preliminary technical data ad8634 rev. pra | page 5 of 7 absolute maximum ratings table 3. parameter rating supply voltage 18 v input voltage v? v in v+ differential input voltage 1 0.6 v output short-circuit duration to gnd tbd storage temperature range ?65c to +210c operating temperature range soic package ?40c to +175c flatpack package ?40c to +210c junction temperature soic package 210c flatpack package 210c lead temperature (soldering 60 sec) 300c 1 for input differential voltages greate r than 0.6 v, the input current should be limited to less than 5 ma to prevent degradation or destruction of the input devices. stresses above those listed under absolute maximum ratings may cause permanent damage to the device. this is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. thermal resistance ja is specified for the device soldered on a 4-layer jedec standard printed circuit board (pcb) with zero airflow. table 4. thermal resistance package type ja jc unit 8-lead soic_n 121 43 c/w 8-lead flatpack tbd tbd c/w esd caution
ad8634 preliminary technical data rev. pra | page 6 of 7 outline dimensions controlling dimensions are in millimeters; inch dimensions (in parentheses) are rounded-off millimeter equivalents for reference only and are not appropriate for use in design. compliant to jedec standards ms-012-aa 012407-a 0.25 (0.0098) 0.17 (0.0067) 1.27 (0.0500) 0.40 (0.0157) 0.50 (0.0196) 0.25 (0.0099) 45 8 0 1.75 (0.0688) 1.35 (0.0532) seating plane 0.25 (0.0098) 0.10 (0.0040) 4 1 85 5.00 (0.1968) 4.80 (0.1890) 4.00 (0.1574) 3.80 (0.1497) 1.27 (0.0500) bsc 6.20 (0.2441) 5.80 (0.2284) 0.51 (0.0201) 0.31 (0.0122) coplanarity 0.10 figure 2. 8-lead standard small outline package [soic_n] narrow body (r-8) dimensions shown in millimeters and (inches) 03-26-2013-a 0.260 0.255 sq 0.250 1.00 top view bottom view end view side view 0.012 r typ 0.175 0.026 min 0.195 0.190 sq 0.185 0.155 0.150 0.145 0.053 0.050 0.047 0.006 0.005 0.004 0.091 0.083 0.075 0.019 0.017 0.015 1 4 8 5 idex mark 0.054 0.044 0.034 0.05 typ 0.024 0.007 min 0.035 typ figure 3. 8-lead ceramic flat package [flatpack] (f-8-2) dimensions shown in inches ordering guide model 1 temperature range package description package option AD8634HRZN ?40c to +175c 8-lead standa rd small outline package [soic_n] r-8 ad8634hfz ?40c to +210c 8-lead ceramic flat package [flatpack] f-8-2 1 z = rohs compliant part.
preliminary technical data ad8634 rev. pra | page 7 of 7 notes ?2013 analog devices, inc. all rights reserved. trademarks and registered trademarks are the prop erty of their respective owners. pr11524-0-7/13(pra)
|
