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NTE987/NTE987SM Integrated Circuit Quad, Low Power OP Amp
Description: The NTE987 and NTE987SM are low cost quad operational amplifiers with true differential inputs. These have several distinct advantages over standard operational amplifier types in single supply applications. The quad amplifier can operate at supply voltages as low as 3V or as high as 32V with quiescent currents about one fifth of those associated with the NTE941 (on a per amplifier basis). The common mode input range includes the negative supply, thereby eliminating the necessity for external biasing components in many applications. The output voltage range also includes the negative power supply voltage. Features: D Available in 14-Lead DIP (NTE987) and Surface Mount, SOIC-14 (NTE987SM) D Short Circuit Protected Outputs D True Differential Input Stage D Single Supply Operation: 3V to 32V D Four Amplifiers per Package D Internally Compensated D Common Mode Range Extends to Negative Supply D Industry Standard Pin-Outs Absolute Maximum Ratings: (TA = +25C unles otherwise specified) Power Supply Voltages Single Supply, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32V Split Supplies, VCC VEE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V Input Differential Voltage Range (Split Power Supplies), VIDR . . . . . . . . . . . . . . . . . . . . . . . . . . . 32V Input Common Mode Voltage range, VICR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 32V Input Forward Current (VI < 0.3V, Note 1), IIF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA Output Short Circuit Duration, tS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150C Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +70C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125C Note 1. This input current will only exist when the voltage is negative at any of the input leads. Normal output states will reestablish when the input voltage returns to a voltage greater than -0.3V.
Electrical Characteristics: (VCC = 5V, VEE = GND, TA = +25C unles otherwise specified)
Parameter Input Offset Voltage Symbol VIO Test Conditions VCC = 5V to 30V, VICR = 0 to VCC-1.7V, VO = 1.4V, RS = 0 Min - TA = 0 to +70C - - - TA = 0 to +70C Average Temperature Coefficient of Input Offset Current Input Bias Current IIO/T IIB TA = 0 to +70C Input Common-Mode Voltage Range Differential Input Voltage Range Large Signal Open-Loop Voltage Gain Channel Separation Common-Mode Rejection Ratio Power Supply Rejection Ratio Output Voltage Range Output Voltage - High Limit CMRR PSRR VOR VOH VOL ISource ISink RL = 2k VCC = 30V, TA = 0 to +70C RL = 2k RL = 10k VICR VIDR AVOL RL = 2k, VCC = 15V, For Large VO Swing TA = 0 to +70C VCC = 30V TA = 0 to +70C TA = 0 to +70C - - - - 0 0 - 25 15 - 65 65 0 26 27 - 20 TA = 0 to +70C Output Sink Current VID = -1V, VCC = 15V TA = 0 to +70C VID = -1V, VO = 200mV Output Short Circuit to GND Power Supply Current Ios ICC Note 3 VO = 0, RL = , TA = 0 to +70C VCC = 30V VCC = 5V 10 10 5 12 - - - Typ 2 - 7 5 - 10 -90 - - - - 100 - -120 70 100 - - 28 5 40 20 20 8 50 40 - - Max 7 9 - 50 150 - -250 -500 28.3 28.0 VCC - - - - - 3.3 - - 20 - - - - - 60 3.0 1.2 Unit V V V/C nA nA pA/C nA nA V V V V/mV V/mV dB dB dB V V V mV mA mA mA mA A mA mA mA
Average Temperature Coefficient of Input Offset Voltage Input Offset Current
VIO/T TA = 0 to +70C IIO
1kHz f 20kHz, Input Referenced RS 10k
Output Voltage - Low Limit Output Source Current
VCC = 5V, RL = 10k, TA = 0 to +70C VID = 1V, VCC = 15V
Note 2. The input common-mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the common-mode voltage range is VCC-1.7V, but either or both inputs can go to +32V without damage. Note 3. Short circuits from the output to VCC can cause excessive heating and eventual destruction. Destructive dissipation can result from simultaneous shorts on all amplifiers.
Pin Connection Diagram Output 1 1 Invert Input 1 2 Non-Invert Input 1 3 V (+) 4 Non-Invert Input 2 5 Invert Input 2 6 Output 2 7 NTE987 14 8 14 Output 4 13 Invert Input 4 12 Non-Invert Input 4 11 GND 10 Non-Invert Input 3 9 Invert Input 3 8 Output 3
1
7
.785 (19.95) Max .200 (5.08) Max
.300 (7.62)
.100 (2.45) .600 (15.24) NTE987SM .340 (8.64)
.099 (2.5) Min
14 1
8 7
.236 (5.99) .154 (3.91)
.050 (1.27)
016 (.406) 061 (1.53) .006 (.152)
.198 (5.03)
NOTE: Pin1 on Beveled Edge

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