OPA171_15 Datasheet, PDF (18/43 Pages) Texas Instruments – Single-Supply, SOT553, General-Purpose Operational Amplifiers

OPA171, OPA2171, OPA4171
SBOS516E – SEPTEMBER 2010 – REVISED JUNE 2015
50
R_L = 10kW
45
40
35
30
25
20
G = +1
15
R_OUT = 0W
+18V
ROUT
10
R_OUT = 25W
OPA171
-18V
RL
CL
5
R_OUT = 50W
0
0 100 200 300 400 500 600 700 800 900 1000
Capacitive Load (pF)
Figure 38. Small-Signal Overshoot vs Capacitive Load
(100-mV Output Step)
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50
45
R_OUT = 0W
40
R_OUT = 25W
35
R_OUT = 50W
30
25
20
15
10
5
0
0
RI = 10kW
RF = 10kW
+18V
OPA171
-18V
G = -1
ROUT
CL
100 200 300 400 500 600 700 800 900 1000
Capacitive Load (pF)
Figure 39. Small-Signal Overshoot vs Capacitive Load
(100-mV Output Step)
7.4 Device Functional Modes
7.4.1 Common-Mode Voltage Range
The input common-mode voltage range of the OPAx171 family of devices extends 100 mV below the negative
rail and within 2 V of the top rail for normal operation.
This device can operate with full rail-to-rail input 100 mV beyond the top rail, but with reduced performance within
2 V of the top rail. The typical performance in this range is summarized in Table 2.
18
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