NTE888M Integrated Circuit Low Power Programmable Operational Amplifier Description: The NTE888M is an operational amplifier in an 8–Lead DIP type package featuring low power consumption and high input impedance. In addition, the quiescent currents within this device may be programmed by the choice of an external resistor value or current source applied to the ISET input. This allows the NTE888M’s characteristics to be optimized for input current and power consumption despite wide variations in operating power supply voltages. Features: D ±1.2V to ±18V Operation D Wide Programming Range D Offset Null Capability D No Frequency Compensation Required D Low Input Bias Currents D Short–Circuit Protection Maximum Ratings: (TA = +25°C unless otherwise noted) Power Supply Voltages, VCC, VEE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V Differential Input Voltage, VID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30V Common–Mode Input Voltage, VICM VCC and |VEE| < 15V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC, VEE VCC and |VEE| ≥ 15V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15V Offset Null to VEE Voltage, Voff – VEE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.5V Programming Current, Iset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500µA Programming Voltage, VSET Voltage from ISET terminal to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (VCC –2V) to VCC Output Short–Circuit Duration (Note 1), ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indefinite Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Note 1. May be to GND or either Supply Voltage. Rating applies up to a case temperature of +125°C or ambient temperature of +70°C and ISET ≤ 30µA. Electrical Characteristics: (VCC = +15V, VEE = –15V, ISET = 15µA, TA = +25°C unless other– wise specified) Parameter Input Offset Voltage Symbol Min Typ Max Unit – 2 6 mV – – 7.5 mV VIOR – 18 – mV IIO – 2 25 nA TA = +70°C – – 25 nA TA = 0°C – – 40 nA – 15 50 nA TA = +70°C – – 50 nA TA = 0°C – – 100 nA VIO Test Conditions RS ≤ 10kΩ 0° ≤ TA ≤ +70°C Offset Voltage Adjustment Range Input Offset Current Input Bias Current IIB Input Resistance ri – 5 – MΩ Input Capacitance ci – 2 – pF 0° ≤ TA ≤ +70°C ±10 – – V RL ≥ 5kΩ, VO = ±10V 50k 400k – V/V RL ≥ 75kΩ, VO = ±10V, 0° ≤ TA ≤ +70°C 50k – – V/V RL ≥ 5kΩ ±10 ±13 – V RL ≥ 75kΩ, 0° ≤ TA ≤ +70°C ±10 – – V Input Voltage Range Large Signal Voltage Gain Output Voltage Swing VID AVOL VO Output Resistance ro – 1 – kΩ Output Short–Circuit Current Ios – 12 – mA Common–Mode Rejection Ratio CMRR RL ≤ 10kΩ, 0° ≤ TA ≤ +70°C 70 90 – dB Supply Voltage Rejection Ratio PSRR RL ≤ 10kΩ, 0° ≤ TA ≤ +70°C – 25 200 µV/V Supply Current ICC, IEE – 160 190 µA – – 200 µA 5.7 mW 0° ≤ TA ≤ +70°C Power Dissipation Transient Response (Unity Gain) Rise Time Overshoot Slew Rate PD tTLH – 0° ≤ TA ≤ +70°C – – 6.0 mW Vin = 20mV, RL ≥ 5kΩ, CL = 100pF – 0.35 – µs – 10 – % – 0.8 – V/µs OS SR RL ≥ 5kΩ Pin Connection Diagram Offset Null 1 1 8 ISET Inverting Input 2 7 VCC (+) Non–Inverting Input 3 6 Output VCC (–) 4 8 5 Offset Null 2 5 .260 (6.6) 1 4 .300 (7.62) .390 (9.9) Max .155 (3.93) .100 (2.54) .145 (3.68) .300 (7.62)