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NTE887M Integrated Circuit Low Power, JFET OP Amplifier
Description: The NTE887M is a JFET-input operational amplifier in an 8-Lead DIP type package designed as a low-power version of the NTE857M amplifier. This device features high input impedance, wide bandwidth, high slew rate, and low input offset and bias current. Features: D Very Low Power Consumption D Typical Supply Current: 200A D Wide Common-Mode and Differential Voltage Ranges D Low Input Bias and Offset Currents D Common-Mode Input Voltage Range Includes VCC+ D Output Short-Circuit Protection D High Input Impedance: JFET-Input Stage D Internal Frequency Compensation D Latch-Up-Free Operation D High Slew rate: 3.5V/s Typ Absolute Maximum Ratings: (TA = 0 to +70C unless otherwise specified) Supply Voltage (Note 1), VCC+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +18V Supply Voltage (Note 1), VCC- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -18V Differential Input Voltage (Note 2), VID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V Input Voltage (Note 1, Note 3), VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Duration of Output Short Circuit (Note 4), ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unlimited Continuous Total Dissipation, PD TA +25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 680mW Derate Above +65C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8mW/C TA = +70C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 640mW Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +70C Storage Temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Lead Temperature (During Soldering, 1/16" (1.6mm) from case for 10sec), TL . . . . . . . . . . . +260C Note 1. All voltage values, except differential voltages, are with respect to the midpoint between VCC+ and VCC-. Note 2. Differential voltages are at the non-inverting input pin with respect to the inverting input pin. Note 3. The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 15V, whchever is less. Note 4. The output may be shorted to GND or to either supply. Temperature and/or supply voltages must be limited to ensure that the dissipation rating is not exceeded.
Electrical Characteristics: (VCC = 15V, Note 5 unless otherwise specified)
Parameter Input Offset Voltage Symbol VIO aVIO IIO IIB VICR VOM AVD B1 ri CMRR kSVR PD ICC Vo1/Vo2 Test Conditions VO = 0, RS = 50 TA = +25C TA = 0 to +70C Min - - - - - - - 11 10.0 3 3 - - 70 70 - - - Typ 3 - 10 5 - 30 -
-12 +15
Max 15 20 - 200 5 400 10 - - - - - - - - - 7.5 250 -
Unit mV mV V/C pA nA pA nA V V V V/mV V/mV MHz dB dB mW A dB
Temperature Coefficient of Input Offset Voltage Input Offset Current
VO = 0, RS = 50, TA = 0 to +70C VO = 0, Note 6 VO = 0, Note 6 TA = +25C RL = 10k, TA = +25C RL 10k, TA = 0 to +70C VO = 10V, RL 10k TA = +25C TA = 0 to +70C TA = +25C TA = 0 to +70C TA = +25C TA = 0 to +70C
Input Bias Current
Common-Mode Input Voltage Range Maximim Peak Output Voltage Swing
10.0 13.5 - 6 - 1 1012 86 95 6.0 200 120
Large-Signal Differential Voltage Amplification Unity-Gain Bandwidth Input Resistance Common-Mode Rejection Ratio Supply Volatge Rejection Ratio (VCC/VIO) Total Power Dissipation Supply Current Crosstalk Attenuation
RL = 10k, TA = +25C TA = +25C VIC = VICRmin, VO = 0, RS = 50, TA = +25C VCC = 15V to 9V, VO = 0, RS = 50, TA = +25C No Load, VO = 0, TA = +25C No Load, VO = 0, TA = +25C AVD = 100, TA = +25C
Note 5. All characteristics are measured under open-loop conditions with zero common-mode voltage unless otherwise specified. Note 6. Input bias currents of a FET-input operational amplifier are normal junction reverse currents, which are temperature sensitive. Pulse techniques must be used that will maintain the junction temperature as close to the ambient temperature as possible. Operating Characteristics: (VCC = 15V, TA = +25C unless otherwise specified)
Parameter Slew Rate at Unity Gain Rise Time Overshoot Factor Equivalent Input Noise Voltage Vn RS = 100, f = 1kHz Symbol SR tr Test Conditions VI = 10V, RL = 10k, CL = 100pF VI = 20mV, RL = 10k, CL = 100pF Min 1.5 - - - Typ 3.5 0.2 10% 42 Max - - - - nV/Hz Unit V/s s
Pin Connection Diagram
Offset Null 1 1 Inverting Input 2
8
N.C.
7 VCC (+) 6 5 Output Offset Null 2
Non-Inverting Input 3 VCC (-) 4
8
5
.260 (6.6)
1
4
.390 (9.9) Max .155 (3.93)
.300 (7.62)
.100 (2.54) .300 (7.62)
.145 (3.68)

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