OP191/OP291/OP491
ELECTRICAL SPECIFICATIONS
(@ V =
±5.0
V, –4.9 V
≤
V
O
CM
≤
+4.9 V, T
A
= +25°C unless otherwise noted)
Min
Typ
80
80
30
0.1
–5
75
67
25
Max
500
1
700
1.25
50
70
8
16
+5
Units
µV
mV
µV
mV
nA
nA
nA
nA
V
dB
dB
V/mV
µV/°C
pA/°C
pA/°C
V
V
V
V
mA
mA
Ω
dB
dB
µA
µA
V/µs
kHz
µs
MHz
Degrees
dB
µV
p-p
nV/√Hz
pA/√Hz
Parameter
INPUT CHARACTERISTICS
Offset Voltage
OP191
OP291/OP491
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection
Large Signal Voltage Gain
Offset Voltage Drift
Bias Current Drift
Offset Current Drift
OUTPUT CHARACTERISTICS
Output Voltage Swing
Symbol
V
OS
V
OS
I
B
I
OS
CMR
A
VO
∆V
OS
/∆T
∆I
B
/∆T
∆I
OS
/∆T
V
O
Conditions
–40
≤
T
A
≤
+125°C
–40
≤
T
A
≤
+125°C
–40
≤
T
A
≤
+125°C
–40
≤
T
A
≤
+125°C
V
CM
=
±
5 V
–40
≤
T
A
≤
+125°C
R
L
= 10 kΩ, V
O
=
±
4.7 V,
–40
≤
T
A
≤
+125°C
100
97
70
50
1.1
100
20
±
4.99
±
4.98
±
4.95
±
4.75
±
16
±
13
200
110
100
260
390
0.5
1.2
22
3
45
145
2
35
0.8
Short Circuit Limit
Open Loop Impedance
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Full-Power Bandwidth
Settling Time
Gain Bandwidth Product
Phase Margin
Channel Separation
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Current Noise Density
Specifications subject to change without notice.
I
SC
Z
OUT
PSRR
I
SY
R
L
= 100 kΩ to GND
–40°C to +125°C
R
L
= 2 kΩ to GND
–40
≤
T
A
≤
+125°C
Sink/Source
–40°C to +125°C
f = 1 MHz, A
V
= 1
V
S
=
±
5 V
–40
≤
T
A
≤
+125°C
V
O
= 0 V
–40
≤
T
A
≤
+125°C
R
L
=10 kΩ
1% Distortion
To 0.01%
±
4.93
±
4.90
±
4.80
±
4.65
±
8.75
±
6
80
70
420
550
±
SR
BW
P
t
S
GBP
θ
O
CS
e
n
p-p
e
n
i
n
f = 1 kHz
0.1 Hz to 10 Hz
f = 1 kHz
5V
100
90
INPUT
OUTPUT
V
S
=
±5V
R
L
= 2kΩ
A
V
= +1
VI
N
= 20Vp-p
10
0%
5V
200µs
Figure 1. Input and Output with Inputs Overdriven by 5 V
–4–
REV. 0
AD [ ANALOG DEVICES ]
