OPA191_017 Datasheet, PDF (17/51 Pages) Texas Instruments – 36-V, Low Power, Precision, CMOS, Rail-to-Rail Input/Output, Low Offset Voltage, Low Input Bias Current Op Amp

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OPA191, OPA2191, OPA4191
SBOS701A – DECEMEBER 2015 – REVISED APRIL 2016
At T_A = 25°C, V_S = ±18 V, V_CM = V_S / 2, R_L = 10 kΩ connected to V_S / 2, and C_L = 100 pF, unless otherwise noted.
100k
60
RISO = 0
50
RISO = 25
RISO = 50
10k
40
30
1k
20
10
100
100m 1
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
Figure 31. Open-Loop Output Impedance vs Frequency
20
RISO = 0
RISO = 25
RISO = 50
0
10
100
1000
Capacitive Load (pF)
C004
G = –1, 100-mV output step
Figure 32. Small-Signal Overshoot vs Capacitive Load
(100-mV Output Step)
Output
Input
10
0
10
100
1000
Capacitive Load (pF)
C004
G = 1, 100-mV output step
Figure 33. Small-Signal Overshoot vs Capacitive Load
Time (50 Ps/div)
Figure 34. No Phase Reversal
Negative overload
Positive overload
Time (Ps)
V_S = ±18 V, G = –10 V/V
Figure 35. Overload Recovery
Time (2.5 µs/div)
C017
G = 1, C_L = 10 pF
Figure 36. Small-Signal Step Response
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