OP-97 TECHNOLOGY FEATURES = Supply Current 600A Max wu OP-07 Type Performance Offset Voltage 25uV Max Offset Voltage Drift 0.6xV/C Max a Very Low Bias Current 100pA Max a Very Low Offset Current 100pA Max aw Low Noise 0.5nVp-p a Common Mode Rejection Ratio 114dB Min APPLICATIONS = Replaces OP-07 While Saving Power w Precision instrumentation a Charge Integrators a Wide Dynamic Range Logarithmic Amplifiers a Light Meters a Low Frequency Active Filters = Thermocouple Amplifiers Low-Power, High-Precision Operational Amplifier DESCRIPTION The OP-97 is a low-power precision amplifier that provides OP-07 performance while drawing less than 1/6 the OP-07 supply current. Offset voltage is 10xV and drift with temperature is 0.2V/C. The OP-97 performance is improved over OP-07 perfor- mance in several areas. Bias and offset currents remain in the picoampere levels over the fuil military temperature range. Common mode voltage rejection and power supply rejection are also improved. The OP-97 conforms to the OP-07 pinout with the null po- tentiometer connected between pins 1 and 8 with the wiper to V*. The OP-97 will upgrade circuit designs using 725, OP-05, OP-07 and OP-12 amplifiers. For applications requiring improved price and/or perfor- mance refer to the LT1012 and LT 1097 datasheets. Protected by U.S. patents 4,575,685 and 4,775,884 Instrumentation Amplifier with + 100V Common Mode Range 10M 1002 AAA AAA We mT] 15V Ay=100 = ALL RESISTORS 1% OR BETTER Typical Distribution of Input Bias Current nN 2 S Vg= +15V -.__ 1020 UNITS Ta=25C FROM THREE Vom =0V RUNS D o Q 3 2 3 NUMBER OF UNITS = a + 0 =120 -60 0 60 120 INPUT BIAS CURRENT (pA) LT WNAR OP-97 ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION Supply Voltage ............cccceseeseeeeseeeeenes +20V Top VIEW ORDER PART Differential Input Current (Note 1) ................ +10mA NUMBER Input Voltage 2.0... eect e teen tenet ee ees +20V Output Short Circuit Duration................., Indefinite Operating Temperature Range OP-97AH OPQTA .ooecccceccceeteceeeeeee ~ 55C to 125C OP-97EH OP-O7E ec cceec cess see seeeeen ees - 40C to 85C Storage Temperature Range ose) AIDeViC@S 0... ccc cceeceeeeeee. ~ 65C to 150C H PACKAGE Lead Temperature (Soldering, 10 sec.).............. 300C B-LEAD TO'S METAL CAN TOP VIEW OP-97AU8 mG) Ry OP-97EJ8 OP-97EN8 TE OVER v i 33 come J8 PACKAGE N8 PACKAGE 8-LEAD CERAMIC DIP 8-LEAD PLASTIC DIP ELECTRICAL CHARACTE RISTICS Vg = + 15V, Vom =0V, Ta = 25C, unless otherwise noted. OP-97AIE SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Vos Input Offset Voltage 10 26 aV AVog Long Term Offset 0.3 uV/Month ATime Voltage Stability log Input Offset Current 30 100 pA Ig Input Bias Current +30 +100 pA ep Input Noise Voltage 0.1Hz to 10Hz 05 pVp-p Input Noise Voltage Density fy = 10Hz (Note 3} 17 30 nViNHz f, = 1000Hz (Note 4) 14 22 nViviHz in Input Noise Current Density fy=10Hz 20 fAINHz Avot Large Signal Voltage Gain Vo= + 10V; R, = 2k0 300 2000 VimV CMRR Common Mode Rejection Ratio Voy = + 13.5V 114 132 dB PSRR Power Supply Rejection Ratio Vg= +2Vto +20V 114 132 dB Input Voltage Range (Note 2} + 13.5 +140 V Vout Output Voltage Swing R, = 10k? +13 +14 V SR Slew Rate 0.1 0.2 Vins Differential Input Resistance (Note 5) 30 MQ Closed-Loop Bandwidth Avc= +1 (Note 5) 0.4 0.9 MHz Ig Supply Current 380 600 pA Vg Supply Voltage Operating Range +2 +15 +20 V ELECTRICAL CHARACTERISTICS Vg = + 15V, Vom= OV, - 40C < Ty <85C tor the OP-97E and - 55C <T, <125C for the OP-97A unless otherwise noted. OP-97 . OP-97AIE SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Vos Input Offset Voltage e 25 60 uV TCVog Average Temperature e 0.2 0.6 wVPC Coefficient of Vog log Input Offset Current e 60 250 pA TClos Average Temperature e 0.4 2.5 pare Coefficient of los lp Input Bias Current OP-97A e +60 +600 pA OP-97E e +60 +250 pA TClp Average Temperature OP-97A e 0.4 6.0 palec Coefficient of lp OP-97E e 0.4 25 pAlec Avo. Large Signal Voltage Gain Vo= + 10V;R, = 2k e 200 1000 VimV CMRR Common Mode Rejection Ratio Voy = + 13.5V e 108 128 dB PSRR Power Supply Rejection Ratio Vg = +2.5V to +20V e 108 126 dB Input Voltage Range (Note 2) e +135 +140 Vout Output Voltage Swing R, = 10k e +13 +14 V SR Slew Rate (Note 6) e 0.05 0.15 Vins Ig Supply Current e 400 800 pA Vg Supply Voltage Operating Range e +25 +15 +20 V The @ denotes the specifications which apply over the full operating temperature range. Note 1: Differential input voltages greater than 1V will cause excessive cur- rent to flow through the input protection diodes unless limiting resistance is used, Note 2: Guaranteed by CMRR test. for noise are available on request. Note 4: Sample tested. Note 5: Guaranteed by design. Note 3: 10Hz noise voltage density is sample tested. Devices 100% tested Note 6: Guaranteed by design and correlation to 25C limit. TYPICAL PERFORMANCE CHARACTERISTICS Typical Distribution of Input Offset Voltage 200 tr 1140 UNITS Vg=+15V FROM THREE Ta 25C 160 } RUNS on i E 5 120 r a 5 i oc poo ~ + 3 i i = 80 b- 5 t = 40 - 20 a 20 40 INPUT OFFSET VOLTAGE (nV) NUMBER OF UNITS 200 160 120 80 40 Typical Distribution of Input Offset Current T T Vg= +15V_! Ta=25C + Vom=0V 1020 UNITS FROM THREE RUNS 120 60 120 INPUT OFFSET CURRENT (pA) INPUT BIAS CURRENT (pA) Input Bias Current Over Common Mode Range 60 Vg= 4 15V | Ta=25C 40 pn DEVICE WITH POSITIVE INPUT CURRENT 20 pe pe Rinom=2 x 10720 0 . DEVICE WITH NEGATIVE INPUT CURRENT | ad -20 aes ip ~40 Vom 60 -15 -10 -5 0 5 10 15 COMMON-MODE INPUT VOLTAGE LT WN 3 OP-97 TYPICAL PERFORMANCE CHARACTERISTICS Noise Spectrum Voltage Gain vs Frequency Gain, Phase Shift vs Frequency 1000 140 40 aH T,=25C 120 iN = Vg=s15V ze Vg=42V10 420V 30 Ty= 25C 22 100 ~ Z= 100 a z ze 3 80 _ 0 B Ge Zz a g 2a s = a aa ws z 3 2 = Be VOLTAGE NOISE Za S 19 a == 10 Ss ma aS 1/4 CORNER S z ze 2.5Hz 20 as 1/1 CORNER 9 ao 120Hz 0 PHASE MARGIN =70 1 20 10 1 40 100 1000 0.01 0.1 1 10 100 1k 10k 100k 1M 10M 0.01 0.4 1 10 FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (MHz) Slew Rate, Gain Bandwidth Product vs Over-Compensation Small Signal Transient Response Large Signal Transient Response Capacitor 1 1000 s 2 _ S 3 2 q 04 100 2 > = > = E a Ss 5 Ss wu a N te =x z a s Zoot Vs=+t5V 0 pay Ta=25C = = Ay= +1, Cioap=100pF, 5us/DIV Ay= +1, 2048/DIV 0.001 1 1 10 400 1000 40,000 OVER-COMPENSATION CAPACITOR (pF) Optional Offset Nulling and Over- Common Mode Rejection vs Power Supply Rejection vs Compensation Circuits Frequency Frequency Ve 140 : 5k TO 100k ~ ~ a POT s S 120 S Ss N 5 5 \ S = 100 NI OUT 2 S NEGATIVE 5 8 2 a rostve\, SUPPLY wz w suppLy = \ s & Zz \ = = 60 V- = z a N\ = & \ WITH A 5k TO 100k POTENTIOMETER, INPUT = 5 40 i OFFSET VOLTAGE CAN BE ADJUSTED OVER A S Vg= + 15V Vg= 4 15V : + 800,V RANGE. THE OVER-COMPENSATION 0 Ta= 25C 50 Ta= 25C CAPACITOR, Cs, CAN BE USED TO IMPROVE a CAPACITIVE LOAD HANDLING CAPABILITY, 1 10 100 1k J 10k 100k 1M O1 1 10 100 1k 10k 100k 1M NARROW NOISE BANDWIDTH, OR STABILIZE EQUENCY (Hz) FREQUENCY (Hz) CIRCUITS WITH GAIN IN THE FEEDBACK LOOP. Please see Linear Technology Databook for package descriptions. 4 Linear Technology Corporation ae 288 a evo 4 1630 McCarthy Blvd. Milpitas, CA 96035-7487 (408) 432-1900 f J LINCAR FAX: (408} 434-0507 TELEX: 499-3977 LINEAR TECHNOLOGY CORPORATION 1989