OPA121 Datasheet, PDF (4/15 Pages) Burr-Brown (TI) – Low Cost Precision Difet OPERATIONAL AMPLIFIER

TYPICAL PERFORMANCE CURVES
T_A = +25°C, V_CC = ±15VDC unless otherwise noted.
INPUT VOLTAGE NOISE SPECTRAL DENSITY
1k
BIAS AND OFFSET CURRENT
vs TEMPERATURE
1k
1k
KP, KU
100
100
100
KM
10
10
KM
10
1
1
10
100
1k
10k
100k
1M
Frequency (Hz)
1
1
0.1
0.1
0.01
–50 –25
0
+25 +50 +75
Ambient Temperature (°C)
0.01
+100 +125
BIAS AND OFFSET CURRENT
vs INPUT COMMON-MODE VOLTAGE
10
10
Bias Current
1
1
Offset Current
0.1
KM
0.1
0.01
–15
–10
–5
0
+5
+10
Common-Mode Voltage (V)
0.01
+15
140
120
100
80
60
40
20
0
1
POWER SUPPLY REJECTION
vs FREQUENCY
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
140
120
100
80
60
40
20
0
1
COMMON-MODE REJECTION
vs FREQUENCY
KM
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
140
120
100
80
60
40
20
0
1
OPEN-LOOP FREQUENCY RESPONSE
KM
Gain
Ø
Phase
Margin
∼≈ 65°
–45
–90
–135
–180
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
®
OPA121
4