OP191/OP291/OP491–SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
(@ V = +3.0 V, V
S
CM
= 0.1 V, V
O
= 1.4 V, T
A
= +25°C unless otherwise noted)
Min
Typ
80
80
30
0.1
0
70
65
25
Max
500
1
700
1.25
50
70
8
16
3
Units
µV
mV
µV
mV
nA
nA
nA
nA
V
dB
dB
V/mV
V/mV
µV/°C
pA/°C
pA/°C
V
V
V
V
mV
mV
mV
mV
mA
mA
Ω
dB
dB
µA
µA
V/µs
V/µs
kHz
µs
MHz
Degrees
dB
µV
p-p
nV/√Hz
pA/√Hz
Parameter
INPUT CHARACTERISTICS
Offset Voltage
OP191G
OP291/OP491G
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
Offset Voltage Drift
Bias Current Drift
Offset Current Drift
OUTPUT CHARACTERISTICS
Output Voltage High
Symbol
V
OS
V
OS
I
B
I
OS
CMRR
A
VO
∆V
OS
/∆T
∆I
B
/∆T
∆I
OS
/∆T
V
OH
Conditions
–40
≤
T
A
≤
+125°C
–40
≤
T
A
≤
+125°C
–40
≤
T
A
≤
+125°C
–40
≤
T
A
≤
+125°C
V
CM
= 0 V to 2.9 V
–40
≤
T
A
≤
+125°C
R
L
= 10 kΩ , V
O
= 0.3 V to 2.7 V
–40
≤
T
A
≤
+125°C
90
87
70
50
1.1
100
20
2.99
2.98
2.9
2.8
4.5
40
Output Voltage Low
V
OL
Short Circuit Limit
Open Loop Impedance
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
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°C to +125°C
R
L
= 100 kΩ to V+
–40°C to +125°C
R
L
= 2 kΩ to V+
–40°C to +125°C
Sink/Source
–40°C to +125°C
f = 1 MHz, A
V
= 1
V
S
= 2.7 V to 12 V
–40°C
≤
T
A
≤
+125°C
V
O
= 0 V
–40°C
≤
T
A
≤
+125°C
R
L
= 10 kΩ
R
L
= 10 kΩ
1% Distortion
To 0.01%
2.95
2.90
2.8
2.70
±
8.75
±
6.0
±
13.5
±
10.5
200
110
110
200
330
0.4
0.4
1.2
22
3
45
145
2
35
0.8
10
35
75
130
80
75
350
480
+SR
–SR
BW
P
t
S
GBP
θ
O
CS
e
n
p-p
e
n
i
n
f = 1 kHz, R
L
= 10 kΩ
0.1 Hz to 10 Hz
f = 1 kHz
–2–
REV. 0
AD [ ANALOG DEVICES ]
