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:
D
Low Input Offset Current: 20na Maximum Over Temperature Range
D
External Frequency Compensation for Flexibility
D
Class AB Output Provides Excellent Linearity
D
Output Short–Circuit Protection
D
Guaranteed Drift Characteristics
Absolute Maximum Ratings:
Power Supply Voltage, V
CC
, V
EE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±18V
Input Differential Voltage, V
ID
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±30V
Input Common–Mode Range (Note 1), V
ICR
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±15V
Output Short–Circuit Duration, t
S
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Power Dissipation (Package Limitation, T
A
= +25°C), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW
Derate Above T
A
= +75°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.8mW/°C
Operating Ambient Temperature Range, T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Note 1. For supply voltages less than
±15V,
the avbsolute maximum input voltage is equal to the supply
voltage.
Electrical Characteristics:
(T
A
= +25°C, V
CC
=
±5V
to
±15V
unless otherwise specified)
Parameter
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Resistance
Supply Current
Large Signal Voltage Gain
Symbol
V
IO
I
IO
I
IB
r
i
I
CC
, I
EE
A
V
V
CC
/V
EE
=±15V
V
CC
/V
EE
=
±15V,
V
O
=
±10V,
R
L
> 2kΩ
R
S
≤
50kΩ
T
A
(min)
≤
T
A
≤
T
A
(max)
+25°C
≤
T
A
≤
T
A
(max)
T
A
(min)
≤
T
A
≤
+25°C
I
IB
A
V
V
I
CMRR
PSRR
V
O
V
CC
/V
EE
=
±15V,
V
O
=
±10V,
R
L
> 2kΩ
V
CC
/V
EE
=
±15V
R
S
≤
50kΩ
R
S
≤
50kΩ
V
CC
/V
EE
=
±15V,
R
L
= 10kΩ
V
CC
/V
EE
=
±15V,
R
L
= 2kΩ
Pin Connection Diagram
(Top View)
Offset Null
Output
5
6
4
V (–)
Test Conditions
R
S
≤
50kΩ
Min
–
–
–
0.5
–
25
Typ Max
2.0
3.0
70
2.0
1.8
160
7.5
50
250
–
3.0
–
Unit
mV
nA
nA
MΩ
mA
V/mV
Note:
The following specifications apply over the operating temperature range.
Input Offset Voltage
Input Offset Current
Average Temperature Coefficient
of Input Offset Voltage
Average Temperature Coefficient
of Input Offset Current
Input Bias Current
Large Signal Voltage Gain
Input Voltage Range
Common–Mode Rejection Ratio
Supply Voltage Rejection Ratio
Output Voltage Swing
V
IO
I
IO
∆V
IO
/∆T
∆I
IO
/∆T
–
–
–
–
–
–
15
±12
70
70
±12
±10
–
–
6.0
0.01
0.02
–
–
–
90
96
±14
±13
10
70
30
0.3
0.6
300
–
–
–
–
–
–
mV
nA
µV/°C
nA/°C
nA/°C
nA
V/mV
V
dB
dB
V
V
V (+)
7
3
Non–Inverting Input
Phase Compensation
8
2
Inverting Input
1
Phase Compensation
51mcu
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