OPA191_017 Datasheet, PDF (14/51 Pages) Texas Instruments – 36-V, Low Power, Precision, CMOS, Rail-to-Rail Input/Output, Low Offset Voltage, Low Input Bias Current Op Amp

OPA191, OPA2191, OPA4191
SBOS701A – DECEMEBER 2015 – REVISED APRIL 2016
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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.
25
160
180
20
15
10
5
0
-5
-10
-15
-20
-25
0
r5
r10
r15
r20
Power Supply Voltage (V)
30 typical units
Figure 13. Offset Voltage vs Power Supply
140
120
100
80
60
40
20
0
±20
±40
0.1
Open-loop Gain
135
Phase
90
45
0
-45
-90
-135
1.0 10.0 100.0 1k 10k 100k 1M 10M 100M
Frequency (Hz)
C001
Figure 14. Open-Loop Gain and Phase vs Frequency
60
1000
G = -1
800
G = +1
600
40
G= -10
400
G= -100
200
20
0
±200
±400
0
±600
-20
100
1k
10k 100k
1M
10M 100M
Frequency (Hz)
C004
±800
±1000
±20 ±15 ±10 ±5 0
5 10 15 20
Common Mode Voltage (V)
C001
Figure 15. Closed-Loop Gain vs Frequency
10
9
I_{B -}
I_B+
8
7
6
5
4
3
2
1
0
±75 ±50 ±25
0 25 50 75 100 125 150
Temperature (ƒC)
C001
Figure 17. Input Bias Current vs Temperature
Figure 16. Input Bias Current vs Common-Mode Voltage
20
18
16
14
12
10
8
6
4
40qC
25qC
2
85qC
125qC
0
0
20
40
60
80
100
Output Current (mA)
Sourcing
Figure 18. Output Voltage Swing vs Output Current
14
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