OPA197_16 Datasheet, PDF (16/39 Pages) Texas Instruments – 36-V, Precision, Rail-to-Rail Input/Output, Low Offset Voltage Operational Amplifiers

OPA197, OPA2197, OPA4197
SBOS737A – JANUARY 2016 – REVISED JULY 2016
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at T_A = 25°C, V_S = ±18 V, V_CM = V_S / 2, R_LOAD = 10 kΩ connected to V_S / 2, and C_L = 100 pF (unless otherwise noted)
3
10k
V_S = r2.25 V
V_S = r18 V
2
1
1k
0
100
-1
-2
-3
-50 -25
0
25
50
75
Temperature (qC)
100 125
10
0
1 10 100 1k 10k 100k 1M 10M
Frequency (Hz)
C016
Figure 25. Open-Loop Gain vs Temperature
45
R_ISO = 0 :
40
R_ISO = 25 :
35
R_ISO = 50 :
30
25
20
15
10
5
0
20 30 40 50 70 100 200 300 500 700 1000
Capacitive Load (pF)
2000
G = –1 V/V
Figure 27. Small-Signal Overshoot vs Capacitive Load
(100-mV Output Step)
Output
Input
Figure 26. Open-Loop Output Impedance vs Frequency
50
R_ISO = 0 :
45
R_ISO = 25 :
40
R_ISO = 50 :
35
30
25
20
15
10
5
20 30 40 50 70 100 200 300 500 700 1000
Capacitive Load (pF)
2000
G = 1 V/V
Figure 28. Small-Signal Overshoot vs Capacitive Load
(100-mV Output Step)
Output
Input
Time (200 Ps/div)
V_S = ±18 V, input = ±18.5 V_PP
Figure 29. No Phase Reversal
Time (200 ns/div)
G = –10 V/V
Figure 30. Positive Overload Recovery
16
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