NTE997 Integrated Circuit Quad Operational Amplifier Description: The NTE997 is a monolithic quad operational amplifier in a 14Lead DIP type package consisting of four independent high gain, internally compensated operational amplifiers. The specifically designed low noise input transistors allow the NTE997 to be used in low noise signal processing applications such as audio preamplifiers and signal conditioners. The simplified output stage completely elimi- nates crossover distortion under any load conditions, has large source and sink capacity, and is short circuit protected. A novel current source stabilizes output parameters over a wide power supply volt- age range. Features: Unity Gain Bandwidth: 3MHz Continuous Short Circuit Protection No Frequency Compensation Required No LatchUp Large Common Mode and Differential Voltage Ranges Parameter Tracking Over Temperature Range Gain and Phase Match Between Amplifiers Absolute Maximum Ratings: Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Differential Input Voltage (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V Input Voltage (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Internal Power Dissipation (T = +70C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 670mW A Derate Above 70C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3mW/C Output Short Circuit Duration (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indifinite Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 to +125C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 to +125C Lead Temperature (During Soldering, 10sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260C Note 1. For supply voltage less than 15V, the absolute maximum input voltage is equal to the supply voltage. Note 2. Shortcircuit may be to GND, one amplifier only. I = 45mA (Typical). SCElectrical Characteristics: (T = +25C, V = 15V unless otherwise specified) A S Parameter Test Conditions Min Typ Max Unit Input Offset Voltage R 10k 0.5 5.0 mV S R 10k , 55 T +125C 6.0 mV S A Input Offset Current 5 200 nA 55 T +125C 500 nA A Input Bias Current 40 500 nA 55 T +125C 1500 nA A Input Resistance 0.3 5.0 M Large Signal Voltage Gain R 2k , V = 10V 50k 300k L OUT R 2k , V = 10V, 55 T 25k L OUT A +125C Output Voltage Swing R 10k 12 14 V L R 2k 10 13 V L R 2k , 55 T +125C 12 V L A Input Voltage Range 12 14 V Common Mode Rejection Ratio R 10k 70 90 dB S Supply Voltage Rejection Ratio R 10k 30 150 V/V S Power Consumption 210 340 mW T = 55C 240 400 mW A T = +125C 180 300 mW A Transient Response (Unity Gain) Overshoot V = 20mV, R = 2k , C 100pF 5.0 % IN L L Unity Gain Bandwidth 2.0 3.0 MHz Slew Rate (Unity Gain) R 2k 1.5 V/ s L Channel Separation (Open Loop) f = 10kHz, R = 1k , Gain = 100 105 dB S Pin Connection Diagram Invert Input A 1 14 Invert Input D NonInvert Input A 2 13 NonInvert Input D Output D Output A 3 12 Output B 4 11 (+) V CC 5 10 Output C NonInvert Input B Invert Input B 6 9 NonInvert Input C () V 7 8 Invert Input C CC