NTE1171
Integrated Circuit
Operational Amplifier
Description:
The NTE1171 is a general purpose operational amplifier in an 8–Lead Metal Can type package. Ad-
vanced processing techniques make possible an order of magnitude reduction in input currents, and
a redesign of the biasing circuitry reduces the temperature drift of the input current.
This amplifier offers many features which make its application nearly foolproof: overload protection
on the input, no latch–up when the common mode range is exceeded, freedom from oscillations and
compensations with a single 30pF capacitor. It has advantages over internally compensated amplifi-
ers in that the frequency compensation can be tailored to the particular application. For example, in
low frequency circuits it can be overcompensated for increased stability margin. Or the compensation
can be optimized to give more than a factor of ten improvement in high frequency performance for
most applications.
Feature:
DLow Input Offset Current: 20na Maximum Over Temperature Range
DExternal Frequency Compensation for Flexibility
DClass AB Output Provides Excellent Linearity
DOutput Short–Circuit Protection
DGuaranteed Drift Characteristics
Absolute Maximum Ratings:
Power Supply Voltage, VCC, VEE ±18V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Differential Voltage, VID ±30V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Common–Mode Range (Note 1), VICR ±15V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Short–Circuit Duration, tSContinuous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (Package Limitation, TA = +25°C), PD500mW. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate Above TA = +75°C 6.8mW/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Ambient Temperature Range, TA0° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, Tstg –65° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note 1. For s upply v oltages l ess t han ±15V, t he a vbsolute m aximum i nput v oltage i s e qual t o t he s upply
voltage.
Electrical Characteristics: (TA = +25°C, VCC = ±5V to ±15V unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Input Offset Voltage VIO RS ≤ 50kΩ–2.0 7.5 mV
Input Offset Current IIO –3.0 50 nA
Input Bias Current IIB –70 250 nA
Input Resistance ri0.5 2.0 –MΩ
Supply Current ICC, IEE VCC/VEE =±15V –1.8 3.0 mA
Large Signal Voltage Gain AVVCC/VEE = ±15V, VO = ±10V,
RL > 2kΩ25 160 –V/mV
Note: The following specifications apply over the operating temperature range.
Input Offset Voltage VIO RS ≤ 50kΩ– – 10 mV
Input Offset Current IIO – – 70 nA
Average Temperature Coefficient
of Input Offset Voltage ∆VIO/∆T TA(min) ≤ TA ≤ TA(max) –6.0 30 µV/°C
Average Temperature Coefficient ∆IIO/∆T+25°C ≤ TA ≤ TA(max) –0.01 0.3 nA/°C
of Input Offset Current TA(min) ≤ TA ≤ +25°C–0.02 0.6 nA/°C
Input Bias Current IIB – – 300 nA
Large Signal Voltage Gain AVVCC/VEE = ±15V, VO = ±10V,
RL > 2kΩ15 – – V/mV
Input Voltage Range VIVCC/VEE = ±15V ±12 – – V
Common–Mode Rejection Ratio CMRR RS ≤ 50kΩ70 90 –dB
Supply Voltage Rejection Ratio PSRR RS ≤ 50kΩ70 96 –dB
Output Voltage Swing VOVCC/VEE = ±15V, RL = 10kΩ ±12 ±14 –V
VCC/VEE = ±15V, RL = 2kΩ ±10 ±13 –V
Pin Connection Diagram
(Top View)
8
7
6
5
4
3
2
1
Phase Compensation
Inverting Input
Non–Inverting Input
V (–)
Offset Null
Output
V (+)
Phase Compensation
.370 (9.39) Dia Max
.335 (8.52) Dia Max
.018 (0.45) Dia Typ
.032 (0.82)
45°
.177 (4.5)
Max
.492
(12.5)
Min
.200 (5.06)
Dia
1
23
4
5
6
7
8
