OPA131 Datasheet, PDF (4/7 Pages) Burr-Brown (TI) – General Purpose FET-INPUT OPERATIONAL AMPLIFIERS

TYPICAL PERFORMANCE CURVES
At T_A = +25°C, V_S = ±15V, and R_L = 2kΩ, unless otherwise noted.
120
100
80
60
40
20
0
–20
1
OPEN-LOOP GAIN/PHASE vs FREQUENCY
0
–45
∅
–90
–135
G
–180
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
POWER SUPPLY AND COMMON-MODE REJECTION
vs FREQUENCY
120
120
100
+PSR
100
80
80
60
–PSR
60
CMR
40
40
20
20
0
0
10
100
1k
10k
100k
1M
Frequency (Hz)
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
1k
1k
100
100
Voltage Noise
10
10
Current Noise
1
1
1
10
100
1k
10k
100k
1M
Frequency (Hz)
CHANNEL SEPARATION vs FREQUENCY
160
R_L = ∞
140
120
Dual and quad devices.
G = 1, all channels.
R_L = 2kΩ
100 ^{Quad measured channel}
A to D or B to C—other
combinations yield improved
rejection.
80
10
100
1k
10k
Frequency (Hz)
100k
INPUT BIAS AND INPUT OFFSET CURRENT
vs TEMPERATURE
10k
1k
V_CM = 0V
100
I_B
I_OS
10
1
0.1
0.01
–75 –50 –25 0
25 50 75
Ambient Temperature (°C)
100 125
INPUT BIAS CURRENT
vs INPUT COMMON-MODE VOLTAGE
1k
Input bias current is a
function of the voltage
between the V– supply
and the inputs.
100
V_S = ±15V
10
1
–15
–10
–5
V_S = ±5V
0
5
10
15
Common-Mode Voltage (V)
®
OPA131/2131/4131
4