NTE975 & NTE975SM Integrated Circuit Operational Amplifier Description: The NTE975 and NTE975SM are general purpose operational amplifiers built on a single chip. The resulting close match and tight thermal coupling gives low offsets and temperature drift as well as fast recovery from thermal transients. The unity–gain compensation specified makes the circuit stable for all feedback configurations, even with capacitive loads. However, it is possible to optimize compensation for the best high frequency performance at any gain. As a comparator, the output can be clamped at any desired level to make it compatible with logic circuits. Features: D Available in 8–Lead Mini DIP (NTE975) and Surface Mount, SOIC–8 (NTE975SM) D Frequency Compensation with a Single 30pF Capacitor D Operation From ±5V to ±20V D Low Current Drain: 1.8mA @ ±20V D Continuous Short–Circuit Protection D Operation as a Comparator with Differential Inputs as High as ±30V D No Latch–Up when Common Mode Range is Exceeded Absolute Maximum Ratings: Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±22V Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Differential Input Voltage, VID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30V Input Voltage (Note 2), VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15V Output Short–Circuit Duration (Note 3), ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indefinite Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C Lead Temperature (During Soldering, 10sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C Note 1. For operating at elevated temperatures the devices must be derated based on a maximum junction to case thermal resistance of +45°C/W, or +150°C/W junction to ambient. Note 2. For supply voltages less than ±15V, the absolute maximum input voltage is equal to the supply voltage. Note 3. Continuous short circuit is allow for ambient temperatures to +70°C. Electrical Characteristics: (0° ≤ TA ≤ +70°C, ±5V ≤ VS ≤ ±15V unless otherwise specified) Parameter Symbol Input Offset Voltage VIO Input Offset Current IIO Input Bias Current IIB Test Conditions Min Typ Max Unit TA = +25°C, RS ≤ 10kΩ – 1.0 5.0 mV RS ≤ 10kΩ – – 6.0 mV TA = +25°C – 40 200 nA – – 300 nA – 120 500 nA – – 0.8 µA 300 800 – kΩ TA = +25°C Input Resistance ri TA = +25°C Supply Current ID TA = +25°C, VS = ±15V – 1.8 2.8 mA TA = +125°C, VS = ±15V – 1.2 2.25 mA TA = +25°C, VS = ±15V, VOUT = ±10V, RL ≥ 2kΩ 50 160 – V/mV VS = ±15V, VOUT = ±10V, RL ≥ 2kΩ 25 – – V/mV RS ≤ 50Ω – 3.0 – µV/°C RS ≤ 10kΩ – 6.0 – µV/°C VS = ±15V, RL = 10Ω ±12 ±14 – V VS = ±15V, RL = 2kΩ ±10 ±13 – V VICR VS = ±15V ±12 – – V Common Mode Rejection Ratio CMRR RS ≤ 10kΩ 70 90 – dB Supply Voltage Rejection Ratio PSRR RS ≤ 10kΩ 77 90 – dB Large Signal Voltage Gain Av Average Temperature Coefficient of Input Offset Voltage Output Voltage Swing TCVIO VO Input Voltage Range Pin Connection Diagram Compensation 1 8 Compensation Inverting Input 2 7 V (+) Non–Inverting Input 3 6 Output V (–) 4 5 Balance NTE975 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) NTE975SM .192 (4.9) 8 1 5 4 .236 (5.99) .154 (3.91) 016 (.406) .050 (1.27) 061 (1.53) .006 (.152) NOTE: Pin1 on Beveled Edge .198 (5.03)