NTE925 Integrated Circuit Instrumentation Operational Amplifier Description: The NTE925 is an operational amplifier in an 8−Lead Metal Can featuring superior performance in applications where low noise, low drift, and accurate closed loop gain are required. With high common mode rejection and offset null capability, this device is especially suited for low level instrumentation applications over a wide supply voltage range. Features; D High Open Loop Gain: 3,000.00 D Low Input Voltage Drift: 0.6µV/°C D High Common Mode Rejection: 120dB D Low Input Noise Current: 0.15pA/√Hz D Low Input Offset Current: 2nA D High Input Voltage Range: ±14V D Wide Power Supply Range: ±3V to ±22V D Offset Null Capability D Output Short Circuit Protection Absolute Maximum Ratings: Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±22V Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Derate Above TA = +75°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C/W Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5V Input Voltage (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±22V Maximum Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65° to +150°C Lead Temperature (During soldering, 10 sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260°C Note 1. For supply voltages less than ±22V, the absolute maximum input voltage is equal to the supply voltage. Electrical Characteristics: (VS = ±15V, TA = +25°C, Note 1 unless otherwise specified) Parameter Input p Offset Voltage g With t E Without External t lT Trim i Average Input Offset Voltage Drift Without External Trim Test Conditions Min Typ Max Unit − 0.5 2.5 mV − − 3.5 mV − 2.0 − µV/°C − 0.6 − µV/°C − 2.0 35 nA TA = +70°C − 1.2 35 nA TA = 0°C − 4.0 50 nA TA = 0° to +70°C − 10 − pA/°C − 42 125 nA TA = +70°C − − 125 nA TA = 0°C − − 250 nA fo = 10Hz − 15 − nV/√Hz fo = 100Hz − 9 − nV/√Hz fo = 1kHz − 8 − nV/√Hz fo = 10Hz − 1.0 − pA/√Hz fo = 100Hz − 0.3 − pA/√Hz fo = 1kHz − 0.15 − pA/√Hz − 15 − MΩ RS ≤ 10kΩ TA = 0° to +70°C RS = 50Ω, TA = 0° to +70°C With External Trim Input p Offset Current Average Input Offset Current Drift Input p Bias Current Input p Noise Voltage g Input p Noise Current Input Resistance ±13.5 ±14.0 − V VOUT = ±10V 250 3000 − V/mV TA = +70°C 125000 − − V/V TA = 0°C 125000 − − V/V 94 120 − dB − 115 − dB − 2.0 35 µV/V − 20 − µV/V RL ≥ 10kΩ ±12.0 ±13.5 − V RL ≥ 2kΩ ±10.0 ±13.5 − V ±10.0 − − V − 80 150 mW Input Voltage Range Large g Signal g Voltage g Gain Common Mode Rejection j Ratio RL ≥ 2kΩ RS ≤ 10kΩ TA = 0° to +70°C Power Supply pp y Rejection j Ratio RS ≤ 10kΩ TA = 0° to +70°C Output p Voltage g Swing g TA = 0° to +70°C Power Consumption Note 1. For supply voltages less than ±22V, the absolute maximum input voltage is equal to the supply voltage. Pin Connection Daigram (Top View) Output V (+) Compensation 5 6 4 3 Non−Invert Input 7 Offset Null V (−) 2 8 1 Offset Null Invert Input .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 45° 5 8 7 6 .032 (0.82) .200 (5.06) Dia