NTE1171 Integrated Circuit Operational Amplifier Description: The NTE1171 is a general purpose operational amplifier in an 8-Lead Metal Can type package. Advanced processing techniques make possible an order of magnitude reduction in input currents, and a redesign of the biasing circuitry reduces the temperature drift of the input current. This amplifier offers many features which make its application nearly foolproof: overload protection on the input, no latch-up when the common mode range is exceeded, freedom from oscillations and compensations with a single 30pF capacitor. It has advantages over internally compensated amplifiers in that the frequency compensation can be tailored to the particular application. For example, in low frequency circuits it can be overcompensated for increased stability margin. Or the compensation can be optimized to give more than a factor of ten improvement in high frequency performance for most applications. Feature: D Low Input Offset Current: 20na Maximum Over Temperature Range D External Frequency Compensation for Flexibility D Class AB Output Provides Excellent Linearity D Output Short-Circuit Protection D Guaranteed Drift Characteristics Absolute Maximum Ratings: Power Supply Voltage, VCC, VEE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Input Differential Voltage, VID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V Input Common-Mode Range (Note 1), VICR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Output Short-Circuit Duration, tS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous Power Dissipation (Package Limitation, TA = +25C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Derate Above TA = +75C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.8mW/C Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +70C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Note 1. For supply voltages less than 15V, the avbsolute maximum input voltage is equal to the supply voltage. Electrical Characteristics: (TA = +25C, VCC = 5V to 15V unless otherwise specified) Parameter Symbol Test Conditions RS 50k Min Typ Max Unit - 2.0 7.5 mV Input Offset Voltage VIO Input Offset Current IIO - 3.0 50 nA Input Bias Current IIB - 70 250 nA Input Resistance ri 0.5 2.0 - M VCC/VEE =15V - 1.8 3.0 mA VCC/VEE = 15V, VO = 10V, RL > 2k 25 160 - V/mV - - 10 mV - - 70 nA Supply Current ICC, IEE Large Signal Voltage Gain AV Note: The following specifications apply over the operating temperature range. Input Offset Voltage VIO Input Offset Current IIO RS 50k Average Temperature Coefficient of Input Offset Voltage VIO/T TA(min) TA TA(max) - 6.0 30 V/C Average Temperature Coefficient of Input Offset Current IIO/T +25C TA TA(max) - 0.01 0.3 nA/C TA(min) TA +25C - 0.02 0.6 nA/C - - 300 nA Input Bias Current IIB Large Signal Voltage Gain AV VCC/VEE = 15V, VO = 10V, RL > 2k 15 - - V/mV Input Voltage Range VI VCC/VEE = 15V 12 - - V Common-Mode Rejection Ratio CMRR RS 50k 70 90 - dB Supply Voltage Rejection Ratio PSRR RS 50k 70 96 - dB VCC/VEE = 15V, RL = 10k 12 14 - V VCC/VEE = 15V, RL = 2k 10 13 - V Output Voltage Swing VO Pin Connection Diagram (Top View) Offset Null Output V (+) 5 6 4 3 Non-Inverting Input 7 Phase Compensation V (-) 8 2 Inverting Input 1 Phase Compensation .370 (9.39) Dia Max .335 (8.52) Dia Max .177 (4.5) Max .492 (12.5) Min .018 (0.45) Dia Typ 3 2 4 1 5 8 45 7 6 .032 (0.82) .200 (5.06) Dia