925

NTE925
Integrated Circuit
Instrumentation Operational Amplifier
Description:
The NTE925 is an operational amplifier in an 8−Lead Metal Can featuring superior performance
in applications where low noise, low drift, and accurate closed loop gain are required. With high
common mode rejection and offset null capability, this device is especially suited for low level
instrumentation applications over a wide supply voltage range.
Features;
D High Open Loop Gain: 3,000,000
D Low Input Voltage Drift: 0.6μV/°C
D High Common Mode Rejection: 120dB
D Low Input Noise Current: 0.15pA/√Hz
D Low Input Offset Current: 2nA
D High Input Voltage Range: ±14V
D Wide Power Supply Range: ±3V to ±22V
D Offset Null Capability
D Output Short Circuit Protection
Absolute Maximum Ratings:
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±22V
Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW
Derate Above TA = +75°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C/W
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5V
Input Voltage (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±22V
Maximum Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65° to +150°C
Lead Temperature (During soldering, 10 sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260°C
Note 1. For supply voltages less than ±22V, the absolute maximum input voltage is equal to the supply
voltage.
Rev. 1−11
Electrical Characteristics: (VS = ±15V, TA = +25°C, Note 1 unless otherwise specified)
Parameter
Input Offset Voltage
Without External Trim
Average Input Offset Voltage Drift
Without External Trim
Test Conditions
Min
Typ
Max
Unit
−
0.5
2.5
mV
−
−
3.5
mV
−
2.0
−
μV/°C
−
0.6
−
μV/°C
−
2.0
35
nA
TA = +70°C
−
1.2
35
nA
TA = 0°C
−
4.0
50
nA
TA = 0° to +70°C
−
10
−
pA/°C
−
42
125
nA
TA = +70°C
−
−
125
nA
TA = 0°C
−
−
250
nA
fo = 10Hz
−
15
−
nV/√Hz
fo = 100Hz
−
9
−
nV/√Hz
fo = 1kHz
−
8
−
nV/√Hz
fo = 10Hz
−
1.0
−
pA/√Hz
fo = 100Hz
−
0.3
−
pA/√Hz
fo = 1kHz
−
0.15
−
pA/√Hz
−
15
−
MΩ
±13.5
±14.0
−
V
VOUT = ±10V
250
3000
−
V/mV
TA = +70°C
125000
−
−
V/V
TA = 0°C
125000
−
−
V/V
94
120
−
dB
−
115
−
dB
−
2.0
35
μV/V
RS ≤ 10kΩ
TA = 0° to +70°C
RS = 50Ω, TA = 0° to +70°C
With External Trim
Input Offset Current
Average Input Offset Current Drift
Input Bias Current
Input Noise Voltage
Input Noise Current
Input Resistance
Input Voltage Range
Large Signal Voltage Gain
Common Mode Rejection Ratio
RL ≥ 2kΩ
RS ≤ 10kΩ
TA = 0° to +70°C
Power Supply Rejection Ratio
RS ≤ 10kΩ
−
20
−
μV/V
Output Voltage Swing
RL ≥ 10kΩ
±12.0
±13.5
−
V
RL ≥ 2kΩ
±10.0
±13.5
−
V
±10.0
−
−
V
−
80
150
mW
TA = 0° to +70°C
TA = 0° to +70°C
Power Consumption
Note 1. For supply voltages less than ±22V, the absolute maximum input voltage is equal to the supply
voltage.
Pin Connection Diagram
(Top View)
Output
V (+)
Compensation
5
6
4
3 Non−Invert Input
7
Offset Null
V (−)
2
8
1
Offset Null
Invert Input
.370 (9.39) Dia Max
.335 (8.52) Dia Max
.177 (4.5)
Max
.492
(12.5)
Min
.018 (0.45) Dia Typ
3
2
4
1
45°
8
5
7
6
.032 (0.82)
.200 (5.06)
Dia
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