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| RH108A Operational Amplifier DESCRIPTION The RH108A is a precision operational amplifier particularly well-suited for high source impedance applications requiring low offset and bias currents and low power consumption. The wafer lots are processed to Linear Technology's inhouse Class S flow to yield circuits usable in stringent military applications. For complete electrical specifications, performance curves and applications information, see the LM108A/LM108 data sheet. ABSOLUTE MAXIMUM RATINGS Supply Voltage ...................................................... 20V Differential Input Current (Note 1) ...................... 10mA Input Voltage (Note 2) .......................................... 15V Output Short-Circuit Duration ......................... Indefinite Operating Temperature Range .............. - 55C to 125C Storage Temperature Range ................. - 65C to 150C Lead Temperature (Soldering, 10 sec).................. 300C , LTC and LT are registered trademarks of Linear Technology Corporation. BUR -I CIRCUIT 10k 20V 7 2 200 3 10k -20V -20V RH108A BI 20V 33pF 8 1 6 7 30pF 8 1 6 1.5k - + OR 249k 3V 2 - + 3 4 4 PACKAGE I FOR ATIO TOP VIEW COMP2 8 COMP1 1 -IN 2 +IN 3 4 V - (CASE) H PACKAGE 8-LEAD TO-5 METAL CAN - TOP VIEW 7 V+ 6 OUT 5 NC TOP VIEW COMP1 1 - 8 7 6 5 J8 PACKAGE 8-LEAD CERDIP COMP2 V + NC GUARD -IN +IN GUARD 1 2 3 4 5 10 9 8 7 6 -IN 2 +IN 3 V- 4 OUT NC W PACKAGE 10-LEAD CERPAC U WW W + U W U U UU + COMPIN COMPOUT V+ OUT V- 1 RH108A TABLE 1: ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER VOS V OS Temp IOS IS Temp IB AVOL CMRR PSRR Input Offset Voltage Average Tempco of Offset Voltage Input Offset Current Average Tempco of Offset Current Input Bias Current Large-Signal Voltage Gain VS = 15V, VOUT = 10V RL 10k Common Mode Rejection Ratio Power Supply Rejection Ratio Input Voltage Range VOUT RIN IS Output Voltage Swing Input Resistance Supply Current (Note 6) VS = 15V VS = 15V, RL = 10k 3 3 80 96 96 13.5 13 30 0.6 1 0.4 2 4 3 2.0 1 4 1 1 40 96 96 13.5 13 5,6 M mA 3 0.2 1 CONDITIONS NOTES (Preirradiation) (Note 4) TA = 25C TYP MAX 0.5 SUB- - 55C T A 125C GROUP MIN TYP MAX 1 1.0 5.0 0.4 2.5 3.0 2,3 5,6 2,3 2,3 2,3 SUBGROUP 2,3 MIN UNITS mV V/C nA pA/C nA V/mV dB dB V V TABLE 1A: ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER VOS IOS IB AVOL CMRR PSRR Input Offset Voltage Input Offset Current Input Bias Current Large-Signal Voltage Gain Common Mode Rejection Ratio Power Supply Rejection Ratio Input Voltage Range VOUT RIN IS Output Voltage Swing Input Resistance Supply Current 3 3 VS = 15V, VOUT = 10V RL 10k CONDITIONS (Postirradiation) (Note 5) 10KRAD(Si) 20KRAD(Si) 50KRAD(Si) 80KRAD(Si) MIN MAX MIN MAX MIN MAX MIN MAX UNITS 0.5 0.2 2.0 98 96 96 13.5 13 30 0.6 98 96 96 13.5 13 30 0.6 0.5 0.2 2.0 90 84 84 13.5 13 30 0.6 0.5 0.2 2.0 86 70 70 13.5 13 30 0.6 M mA 1.0 0.2 4.0 mV nA nA dB dB dB V V NOTES Note 1: Differential input voltages greater than 1V will cause excessive current to flow through the input diodes unless limiting resistance is used. Note 2: For supply voltages less than 15V, the maximum input voltage is equal to the supply voltage. Note 3: Guaranteed by design, characterization or correlation to other tested parameters. Note 4: 5V V S 20V unless otherwise noted. Note 5: VS = 15V, VCM = 0V, TA = 25C unless otherwise noted. Note 6: 25C T A 125C. 2 RH108A TABLE 2: ELECTRICAL TEST REQUIRE E TS MIL-STD-883 TEST REQUIREMENTS Final Electrical Test Requirements (Method 5004) Group A Test Requirements (Method 5005) Group C and D End Point Electrical Parameters (Method 5005) * PDA Applies to subgroup 1. See PDA Test Notes. SUBGROUP 1*,2,3,4,5,6 1,2,3,4,5,6 1 PDA Test Notes The PDA is specified as 5% based on failures from group A, subgroup 1, tests after cooldown as the final electrical test in accordance with method 5004 of MIL-STD-883 Class B. The verified failures (including Delta parameters) of group A, subgroup 1, after burn-in divided by the total number of devices submitted for burn-in in that lot shall be used to determine the percent for the lot. Linear Technology Corporation reserves the right to test to tighter limits than those given. TOTAL DOSE BIAS CIRCUIT 10k 15V 0.1F 2 10k 8V 7 - + 1 8 6 3 4 0.1F -15V RH108A TDBC Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. UW 30pF 3 RH108A TYPICAL PERFORMANCE CHARACTERISTICS Input Offset Voltage 1.5 1.0 V S = 15V VCM = 0V 6 4 V S = 15V VCM = 0V INPUT OFFSET VOLTAGE (mV) INPUT OFFSET CURRENT (nA) INPUT BIAS CURRENT (nA) 0.5 0 -0.5 -1.0 -1.5 -2.0 1 10 100 TOTAL DOSE KRAD (Si) 1000 RH108A G01 Open-Loop Gain 140 COMMON MODE REJECTION RATIO (dB) 130 OPEN-LOOP GAIN (V/mV) 150 140 130 120 110 100 90 80 70 1 POWER SUPPLY REJECTION RATIO (dB) V S = 15V VOUT = 10V RL = 10k 120 110 100 90 80 70 1 10 100 TOTAL DOSE KRAD (Si) 1000 RH108A G04 4 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 q FAX: (408) 434-0507 q TELEX: 499-3977 UW Input Bias Current 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 1 10 100 TOTAL DOSE KRAD (Si) 1000 RH108A G02 Input Offset Current V S = 15V VCM = 0V 2 0 -2 -4 -6 -8 1 10 100 TOTAL DOSE KRAD (Si) 1000 RH108A G03 Common Mode Rejection Ratio 160 V S = 15V VCM = 13.5V 160 140 120 100 80 60 40 20 10 100 TOTAL DOSE KRAD (Si) 1000 RH108A G05 Power Supply Rejection Ratio 1 10 100 TOTAL DOSE KRAD (Si) 1000 RH108A G06 I.D. No. 66-10-0156 Rev. A 0896 LT/HP 0896 REV A 500 * PRINTED IN USA (c) LINEAR TECHNOLOGY CORPORATION 1989 |
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