OPA145 Datasheet, PDF (14/40 Pages) Texas Instruments – High-Precision, Low-Noise, Rail-to-Rail Output, 5.5-MHz JFET Operational Amplifiers

OPA145, OPA2145, OPA4145
SBOS427 – JUNE 2017
www.ti.com
Typical Characteristics (continued)
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)
0.1
-60
500
0.01
-80
0.001
-100
0.0001
0.00001
0.001
G = -1, 600- Load
G = -1, 2k- Load
G = -1, 10k- Load
G = +1, 600- Load
G = +1, 2k- Load
G = +1, 10k- Load
0.01
0.1
1
Output Amplitude (V_RMS)
f = 1 kHz, BW = 90
kHz
-120
-140
10
C004
Figure 19. THD+N vs Output Amplitude
1000
900
800
700
600
V_S = ± 18 V
500
400
V_S = ± 2.25 V
300
200
100
0
±75 ±50 ±25
0 25 50 75
Temperature (ƒC)
100 125 150
C001
400
300
200
100
0
0
V_S = ± 2.25 V
9
18
27
36
Supply Voltage (V)
C001
Figure 20. Quiescent Current vs Supply Voltage
140
0.1
130
V_S = ± 18 V
120
1
V_S = ± 2.25 V
110
100
±50 ±25
0
25
50
75
Temperature (ƒC)
10
100 125
C001
Figure 21. Quiescent Current vs Temperature
140
0.1
130
V_S = ± 18 V
120
1
110
100
±50 ±25
V_S = ± 2.25 V
0
25
50
75 100
Temperature (ƒC)
10
125
C001
Figure 23. Open-Loop Gain vs Temperature
(With 2-kΩ Load)
Figure 22. Open-Loop Gain vs Temperature
(With 10-kΩ Load)
140
120
R_L = 10kŸ
100
80
60
40
20
0
0.01
R_L = 2kŸ
0.1
Output Voltage Swing from Rail (V)
V_S = ±18 V
-40°C
-5°C
25°C
85°C
125°C
1
C001
Figure 24. Open-Loop Gain vs Output Voltage
Swing to Supply
14
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