OPA188 Datasheet, PDF (13/23 Pages) Texas Instruments – 0.03-uV/C Drift, Low-Noise, Rail-to-Rail Output, 36-V, Zero-Drift OPERATIONAL AMPLIFIERS

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OPA188
OPA2188
OPA4188
SBOS525 – AUGUST 2011
TYPICAL CHARACTERISTICS (continued)
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.
SMALL-SIGNAL OVERSHOOT vs CAPACITIVE LOAD
(100-mV Output Step)
NO PHASE REVERSAL
40
R_OUT = 0 W
35
R_OUT = 25 W
30
R_OUT = 50 W
25
20
+18 V
Device
-18 V
37 VPP
Sine Wave
(±18.5 V)
15
10
5
R_L = 10 kW
0
0 100 200
300
400
500
G = -1 ^RI ^{= 10 kW R}F ^{= 10 kW}
+18 V
ROUT
Device
CL
-18 V
600 700 800 900 1000
Capacitive Load (pF)
Figure 25.
V_IN
V_OUT
Time (100 ms/div)
Figure 26.
POSITIVE OVERLOAD RECOVERY
NEGATIVE OVERLOAD RECOVERY
V_OUT
2 kW
VIN
20 kW
+18 V
Device
VOUT
-18 V
G = -10
V_IN
2 kW
VIN
20 kW
+18 V
Device
VOUT
-18 V
G = -10
V_IN
Time (5 ms/div)
Figure 27.
SMALL-SIGNAL STEP RESPONSE
(100 mV)
R_L = 10 kW
C_L = 10 pF
V_OUT
Time (5 ms/div)
Figure 28.
SMALL-SIGNAL STEP RESPONSE
(100 mV)
R_L = 10 kW
C_L = 10 pF
+18 V
Device
-18 V
G = +1
RL
CL
Time (1 ms/div)
Figure 29.
R_I = 2 kW R_F = 2 kW
+18 V
Device
G = -1
C_L
-18 V
Time (20 ms/div)
Figure 30.
Copyright © 2011, Texas Instruments Incorporated
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