advanced monolithic systems, inc. www.advanced-monolithic.com phone (925) 443-0722 fax (925) 443-0723 advanced amsop-77 monolithic ultra low offset voltage operational amplifier systems rohs compliant features applications ? outstanding linearity ? high-gain instrumentation ? low v os overtemperature.???????. 55 v max ? precision data acquisition ? excellent v os drift?????????. 0.6 v/ c max ? precision integrators ? ultra high gain??????????.5000v/mv min ? precision threshold detectors ? high psrr??????????????3 v/v max ? biomedical amplifiers ? low power consumption????????.60mw max general description the amsop-77 is a precision operational amplifier with an ultra low input offset voltage. this device features a wide input voltage range of 13v minimum, low input bias cu rrent, high impedance, high psrr, high cmrr, excellent stability of offsets and gain over time and temperature. exceptional gain linearity eliminates incorrectable system nonlinearities common in previous monolithic op amps, a nd provides superior performance in high closed-loop gain applications. low cost, low noise, low offsets and high open-loop gain make the amsop-77 an excellent choice particularly for high-gain instrumentation applications. other applications include precisi on data acquisition, precision integrators, threshold detectors and medical instrumentation. the amsop-77 is operational in the commercial temperature range of 0 c to 70 c and is available in the 8 lead soic and plastic dip (pdip) packages. ordering information : tol. package type operating 8 lead soic 8 lead pdip temperature range 25 v amsop-77es amsop-77ep 0 to 70 c 60 v AMSOP-77FS amsop-77fp 0 to 70 c 100 v amsop-77gs amsop-77gp 0 to 70 c pin connections 8 lead soic/ 8lead pdip top view 1 2 8 4 3 7 5 6 out n/c v+ v os trim -in +in v os trim v-
advanced monolithic systems, inc. www.advanced-monolithic.com phone (925) 443-0722 fax (925) 443-0723 amsop-77 absolute maximum ratings (note1) supply voltage 22v storage temperature -65 c to +125 c differential input voltage 30v junction temperature +150 c input voltage 22v soldering information (25 sec) 265 c output short circuit duration indefinite thermal resistance operating temperature range 0 c to70 c 8 l soic 158 c/w 8 l pdip 103 c/w electrical characteristics electrical characteristics at v in = 15v and t a = +25c unless otherwise specified. parameter conditions amsop-77e amsop-77f amsop-77g units min typ max min typ max min typ max input offset voltage 10 25 20 60 50 100 v long term v os stability (note 2) 0.3 0.4 0.4 v/mo input offset current 0.3 1.5 0.3 2.8 0.3 2.8 na input bias current -0.2 1.2 2.0 -0.2 1.2 2.8 -0.2 1.2 2.8 na input noise voltage 0.1hz to 10hz 0.35 0.6 0.38 0.65 0.38 0.65 v p-p input noise voltage density f o = 10hz f o = 100hz (note 3) f o = 1000hz 10.3 10.0 9.6 18.0 13.0 11.0 10.5 10.2 9.8 20.0 13.5 11.5 10.5 10.3 9.8 20.0 13.5 11.5 nv/ hz input noise current 0.1hz to 10hz 14 30 15 35 15 35 pa p-p input noise current density f o = 10hz f o = 100hz (note 3) f o = 1000hz 0.32 0.14 0.12 0.80 0.23 0.17 0.35 0.15 0.13 0.90 0.27 0.18 0.35 0.15 0.13 0.90 0.27 0.18 pa/ hz input resistance differential-mode (note 4) 26 45 18.5 45 18.5 45 m ? input resistance common-mode 200 200 200 g ? input voltage range 13 14 13 14 13 14 v common-mode rejection ratio v cm = 13 0.1 1.0 0.1 1.6 0.1 1.6 v/v power supply rejection ratio v s = 13 to 18 0.7 3.0 0.7 3.0 0.7 3.0 v/v large-signal voltage gain r l 2k ? , v o = 10v 5000 12000 2000 6000 2000 6000 v/mv output voltage swing r l 10k ? r l 2k ? r l 1k ? 13.5 12.5 12.0 14.0 13.0 12.5 13.5 12.5 12.0 14.0 13.0 12.5 13.5 12.5 12.0 14.0 13.0 12.5 v slew rate r l 2k ? (note 3) 0.1 0.3 0.1 0.3 0.1 0.3 v/ s closed-loop bandwidth a vcl =+1 (note 3) 0.4 0.6 0.4 0.6 0.4 0.6 mhz open-loop output resistance v o = 0, i o = 0 60 60 60 ? power consumption v s = 15v, no load v s = 3v, no load 50 3.5 60 4.5 50 3.5 60 4.5 50 3.5 60 4.5 mw offset adjustment range r p =20k ? 3 3 3 mv
advanced monolithic systems, inc. www.advanced-monolithic.com phone (925) 443-0722 fax (925) 443-0723 amsop-77 electrical characteristics electrical characteristics at v in = 15, 0c t a +70c unless otherwise specified. parameter conditions amsop-77e amsop-77f amsop-77g units min typ max min typ max min typ max input offset voltage 10 55 20 100 80 150 v average input offset voltage drift (note 3) 0.3 0.6 0.4 1.0 0.7 1.2 v/ c input offset current 0.5 2.2 0.5 4.5 0.5 4.5 na average input offset current drift (note 5) 1.5 40 1.5 85 1.5 85 pa/ c input bias current -0.2 2.4 4.0 -0.2 2.4 6.0 -0.2 2.4 6.0 na average input bias current drift (note 5) 8 40 15 60 15 60 pa/ c input voltage range 13.0 13.5 13.0 13.5 13.0 13.5 v common-mode rejection ratio v cm = 13 0.1 1.0 0.1 3.0 0.1 3.0 v/v power supply rejection ratio v s = 13 to 18 1.0 3.0 1.0 5.0 1.0 5.0 v/v large-signal voltage gain r l 2k ? , v o = 10v 2000 6000 1000 4000 1000 4000 v/mv output voltage swing r l 2k ? 12.0 13.0 12.0 13.0 12.0 13.0 v power consumption v s = 15v, no load 60 75 60 75 60 75 mw note 1: absolute maximum ratings indicate limits beyond which damage to the device may occur. operating ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. for guaranteed specifications and test c onditions, see the electrical characteristics . the guaranteed specifications apply onl y for the test conditions listed. note 2: long-term input offset voltage stability re fers to the averaged trend line of vos vs. time over extended periods after the fir st 30 days of operation. excluding the initial hour of operation, changes in v os during the first 30 operating days are typically 2.5 v. parameter is sample tested. note 3: sample tested note 4: guaranteed by design. note 5: guaranteed by end-point limits. typical performance characteristics input bias current vs differrential input voltage differential input value (v) noninverting input bias current (ma) v s = 15v -30 -20 -10 0 10 20 30 at | v diff | 1.0v, | ib | 7na (op-07c) 040 25 10 85 open-loop gain (v/ v) open-loop gain vs temperature temperature ( c) 15 5 -40 0 -30 -20 -10 0 10 20 30 -30 -20 -10 0 10 20 30 inverting input bias current (ma) 20 1.5 2 4 -1 3.5 absolute change in input offset voltage ( v) warm-updrift time after power supply turn-on (minutes) 1 -2 0.5 -4 2 v s = 15v v s = 15v 0 2.5 t a = 25 c t a = 25 c 13 -3 0 3
advanced monolithic systems, inc. www.advanced-monolithic.com phone (925) 443-0722 fax (925) 443-0723 amsop-77 typical performance characteristics (continued) 0 1 4 -50 0 50 100 temperature ( c) input bias current vs temperature input bias current ( na) 2 3 frequency (hz) peak-to-peak amplituede (v) 0 32 maximum output swing vs frequency 16 12 4 100k 1m 1k 10k 8 24 20 0 10 15 16 20 open-loop gain (v/ v) open-loop gain vs power supply voltage power supply voltage (v) 8 4 5 0 0 0.5 1.0 2.0 -50 0 50 100 temperature ( c) input offset current vs temperature input offset current ( na) 1.5 -40 0 120 0 1 10 100 1k 10k 100k 1m 10m frequency (hz) open-loop frequency response open-loop gain (db) 40 80 0 5 20 100 1k 10k load resistance to ground ( ? ) maximum output voltage vs load resistance maximum output voltage (v) 10 15 12 050 85 100 absolute value of offset voltage ( v) untrimmed offset voltage vs temperature temperature ( c) 50 25 -50 0 75 15 20 40 01234 time from output being shorted (minutes) output short-circuit current vs time output short-circuit current (ma) 25 30 v s = 15v v s = 15v t a = 25 c v s = 15v t a = 25 c v s = 15v t a = 25 c v s = 15v t a = 25 c v s = 15v r s = 100 ? v in = 10mv positive swing negative swing op-77g op-77e r l = 2k ? 28 v s = 15v t a = 25 c 35 op-77f +i sc - i sc
advanced monolithic systems, inc. www.advanced-monolithic.com phone (925) 443-0722 fax (925) 443-0723 amsop-77 typical applications precision high-gain differential amplifier type amount common-mode voltage 0.01%/v gain linearity, worst case 0.02% tcv os 0.008%/ c tci os 0.008%/ c bilateral current source basic current source 100ma current source these current sources will supply both pos itive and negative current into a grounded load. note that r1 r3 r2 r4 r5 1 r2 r4 r5 z o ? + ? ? ? ? ? ? + = and that for z o to be indefinite, r1 r3 must r2 r4 r5 = + . op-77e + - r2 1k ? 0.1 f -15v +15v 1k ? r4 1m ? 4 6 7 2 3 0.1 f 1m ? r3 r1 the high gain, gain linearity, cmrr, low tcv os of the op-77 make it possible to obtain performance not previously available in single stage very high-gain amplifier applications. for the best cmr, r4 r3 equal must r2 1 r . in this example, with a 10mv differential signal, the maximum errors are as listed. op-77 + - 1k ? 100k ? i out 15ma 100k ? 990 ? 6 2 3 r4 r5 10 ? r3 r1 r2 v in op-77 + - i out 100ma 6 2 3 r4 r5 r3 r1 r2 v in 50 ? -15v 2n2907 2n2222 +15v r5 * r1 r3 v i in out = given r3= r4+r5, r1=r2
advanced monolithic systems, inc. www.advanced-monolithic.com phone (925) 443-0722 fax (925) 443-0723 amsop-77 typical applications (continued) precision current sinks positive current sink positive current source these simple high current sinks require that the load float between the power supply and the sink. in these circuits, op-77?s high gain, high cmrr, and low tcv os assure high accuracy. precision absolute value amplifier the high gain and low tcvos assure accurate operation with inputs from microvolts to volts. in this circuit, this signal always appears as a common-mode signal to the op amps. the op-77e cmrr of 1 v/v assures errors of less than 2ppm. low noise precision reference this circuit relies upon op-77?s low tcv os and noise combined with very high cmrr, to provide precision buffering of the averaged ref-01 voltage outputs. op-77 + - r l 200 ? irf520 r1 1 ? v+ v in i o r1 v i in o = 0v v in full scale of 1v, i o = 1a/v op-77 + - r1 200 ? irf520 r l v in i o v- r1 v i in o = 0v v in op-77e + - 0.1 f -15v +15v r3 2k ? 4 6 7 2 3 0.1 f 1k ? op-77e + - 0.1 f -15v +15v 4 6 7 2 3 0.1 f 1k ? v out 0< v out <10v c1 30pf d1 1n4148 2n4393 d2 2 6 4 v o ref-01 2 6 4 v o ref-01 2 6 4 v o ref-01 100k ? 100k ? 100k ? op-77 + - v out 0.1 f +15v 10 f +
advanced monolithic systems, inc. www.advanced-monolithic.com phone (925) 443-0722 fax (925) 443-0723 amsop-77 package dimensions inches (millimeters) unless otherwise noted. 8 lead soic plastic package (s) 8 lead plastic dip package (p) 0-8 typ 0.010-0.020 (0.254-0.508) s (so-8 ) ams drw# 042293 x 45 0.016-0.050 (0.406-1.270) 0.008-0.010 (0.203-0.254) 0.004-0.010 (0.101-0.254) 0.014-0.019 (0.355-0.483) 0.053-0.069 (1.346-1.752) 0.050 (1.270) typ 0.150-0.157** (3.810-3.988) 0.228-0.244 (5.791-6.197) 0.189-0.197* (4.801-5.004) *dimension does not include mold flash. mold flash shall not exceed 0.006" (0.152mm) per side **dimension does not include interlead flash. interlead flash shall not exceed 0.010" (0.254mm) per side 12 34 87 65 0.045-0.065 (1.143-1.651) 0.2550.015* (6.4770.381) 0.400* (10.160) max 12 34 87 65 0.1300.005 (3.3020.127) 0.0180.003 (0.4570.076) 0.1000.010 (2.5400.254) ( 8.255 ) +0.635 -0.381 0.325 +0.025 -0.015 0.009-0.015 (0.229-0.381) 0.300-0.325 (7.620-8.255) 0.065 (1.651) typ 0.005 (0.127) min 0.125 (3.175) min 0.015 (0.380) min *dimensions do not include mold flash or protusions. mold flash or protusions shall not exceed 0.010" (0.254mm) p (8l pdip ) ams drw# 042294
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