NTE944 & NTE944M Integrated Circuit Programmable Operational Amplifier Description: The NTE944 (8−Lead Metal Can) and NTE944M (8−Lead MiniDIP) are extremely versatile programmable monolithic operational amplifiers. A single external master bias current setting resistor programs the input bias current, input offset current, quiescent power consumption, slew rate, input noise, and the gain−bandwidth product. These devices are truly general purpose operational amplifiers. Features: D ±1V to ±18V power supply operation D 3nA input offset current D Standby power consumption as low as 500nW D No frequency compensation required D Programmable electrical characteristics D Offset voltage nulling capability D Can be powered by two flashlight batteries D Short circuit protection Absolute Maximum Ratings: Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V Power Dissipation (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30V Input Voltage (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15V ISET Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150µA Output Short Circuit Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indefinite Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° ≤ TA ≤ +70°C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65° to +150°C Lead Temperature (Soldering, 10sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C Note 1. The maximum junction temperature of the NTE944 is 100°C. For operating at elevated temperatures, the NTE944 must be derated based on a thermal resistance of 150°C/W junction to ambient, or 45°C/W junction to case. The thermal resistance of the NTE944M is +125°C/W. Note 2. For supply voltages less than ±15V, the absolute maximum input voltage is equal to the supply voltage. Electrical Characteristics: (0° ≤ TA ≤+70°C, unless otherwise specified) ISET = 1µA ISET = 10µA Min Max Min Max VS = ±1.5V TA = +25°C, RS ≤ 100kΩ − 5 − 6 mV VS = ±15V − 5 − 6 mV VS = ±1.5V RS ≤ 10kΩ − 6.5 − 7.5 mV VS = ±15V − 6.5 − 7.5 mV VS = ±1.5V TA = +25°C − 6 − 20 nA VS = ±15V − 6 − 20 nA VS = ±1.5V − 8 − 25 nA VS = ±15V − 8 − 25 nA VS = ±1.5V TA = +25°C − 10 − 75 nA VS = ±15V − 10 − 75 nA VS = ±1.5V − 10 − 80 nA VS = ±15V − 10 − 80 nA 25k − − − VO = ±0.6V, RL ≤ 10kΩ − − 25k − TA = +25°C, RL ≤ 100kΩ 60k − − − − − 60k − VS = ±1.5V VO = ±0.5V, RL = 100kΩ 25k − − − RL = 10kΩ − − 25k − 50k − − − − − 50k − VS = ±1.5V TA = +25°C − 8 − 90 µA VS = ±15V − 11 − 100 µA VS = ±1.5V − 8 − 90 µA VS = ±15V − 11 − 100 µA VS = ±1.5V TA = +25°C − 24 − 270 µW VS = ±15V − 330 − 3k µW VS = ±1.5V − 24 − 270 µW VS = ±15V − 330 − 3k µW ±0.6 − − − V RL = 10kΩ − − ±0.6 − V RL = 100kΩ ±12 − − − V RL = 10kΩ − − ±12 − V Common Mode Rejection Ratio VS = ±1.5V RS ≤ 10kΩ 70 − 70 − dB VS = ±15V 70 − 70 − dB VS = ±1.5V RS ≤ 10kΩ 74 − 74 − dB VS = ±15V 74 − 74 − dB Parameter VOS IOS Ibias Large Signal Voltage Gain Test Conditions VS = ±1.5V TA = +25°C, RL ≤ 100kΩ VS = ±15V VO = ±10V, RL ≤ 10kΩ VS = ±15V VO = ±10V, RL = 100kΩ RL = 10kΩ Supply Current Power Consumption Output Voltage Swing VS = ±1.5V RL = 100kΩ VS = ±15V Supply Voltage Rejection Ratio Unit Resistor Biasing: (Set Current Setting Resistor to V−) ISET VS 0.1µA 0.5µA 1.0µA 5µA 10µA 492.0kΩ 244.0kΩ ±1.5V 25.6MΩ ±3.0V 55.6MΩ 11.0MΩ 5.5MΩ 1.09MΩ ±6.0V 116.0MΩ 23.0MΩ 11.5MΩ 2.29MΩ 1.14MΩ ±9.0V 176.0MΩ 35.0MΩ 17.5MΩ 3.49MΩ 1.74MΩ ±12.0V 236.0MΩ 47.0MΩ 23.5MΩ 4.69MΩ 2.34MΩ ±15.0V 296.0MΩ 59.0MΩ 29.5MΩ 5.89MΩ 2.94MΩ 5.04MΩ 2.5MΩ Pin Connection Diagram NTE944 (Top View) Offset Null 5 Output V (+) 6 4 V (−) 3 Non−Inverting Input 7 Quiescent Current Set 8 2 Inverting Input 1 Offset Null Pin Connection Diagram NTE944M Offset Null 1 8 Quiescent Current Set Inverting Input 2 7 V+ Non−Inverting Input 3 6 Output V− 4 5 Offset Null 544.0kΩ Dimensional Drawing NTE944 .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° .200 (5.06) Dia 5 8 7 6 .032 (0.82) Dimensional Drawing NTE944M 8 5 .260 (6.6) 1 4 .390 (9.9) Max .300 (7.62) .155 (3.93) .100 (2.54) .145 (3.68) .300 (7.62)