NTE902 Integrated Circuit Operational Transconductance Amplifier Description: The NTE902 has a differential input and a single–ended, push–pull, class A output. In addition there is a bias input for linear gain control, whose transconductance (gm) is directly proportional to the amplifier bias current (IABC). Features: • Slew rate (unity gain, compensated): 50V/µs • • Flexible supply voltage range: ±2V to ±15V Fully adjustable gain: 0 to gm RL limit Applications: • Sample and hold • Multiplex • • Voltage follower Multiplier • Comparator Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) DC Supply Voltage (between V+ and V– Pins) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5V DC Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V+ to V– Input Signal Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1mA Amplifier Bias Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA Output Short–Circuit Duration (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No limitation Device Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125mW Operating Temperature Range, Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C Lead Temperature (During Soldering), TL (At distance 1/16 ± 1/32in. (1.59 ± 0.79mm) from case for 10s max) . . . . . . . . . . . . . +300°C Note 1. Short circuit may be applied to GND or to either supply. Electrical Characteristics: (V+ = 15V, V– = –15V, IABC = 500µA, TA = +25°C unless otherwise specified) Parameter Min Typ Max Unit – 0.4 5.0 mV – – 6.0 IIO – 0.12 0.6 µA II – 2 5 µA – – 7 6700 9600 13000 TA = 0 to +70°C 5400 – – RL = 0 350 500 650 RL = 0, TA = 0 to +70°C 300 – – RL = ∞ 12.0 13.5 – V–OM –12 –14.4 – Amplifier Supply Current IA 0.8 1 1.2 mA Device Dissipation PD 24 30 36 mW ∆VIO/∆V+ – – 150 µV/V ∆VIO/∆V– – – 150 CMRR 80 110 – dB VICR 12 to –12 13.6 to –14.6 – V RI 10 26 – kΩ VABC – 0.71 – V – 75 – V/µs – 50 – – 2 – MHz Input Offset Voltage Symbol Test Conditions VIO TA = 0 to +70°C Input Offset Current Input Bias Current TA = 0 to +70°C Forward Transconductance (Large signal) Peak Output Current Peak Output Voltage: Positive Negative Input Offset Voltage Sensitivity: Positive Negative Common–Mode Rejection Ratio Common–Mode Input Voltage Range Input Resistance Amplifier Bias Voltage Slew Rate: Maximum (uncompensated) gm IOM V+OM µA V SR Unity gain (compensated) Open–Loop Bandwidth µmho BWOL Input Capacitance CI f = 1MHz – 3.6 – pF Output Capacitance CO f = 1MHz – 5.6 – pF Output Resistance RO – 15 – MΩ – 0.024 – pF Input–to–Output Capacitance CI–O f = 1MHz Pin Connection Diagram Top View Amplifier Bias Input 5 Output V (+) 4 6 3 7 N.C./Tab V (–)/Case 2 8 Non–Inverting Input Inverting Input 1 N.C. .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