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 500mW 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)