OP191 查看數據表（PDF） - Analog Devices
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OP191 Datasheet PDF : 24 Pages
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3.00
+VO @ RL = 100kΩ
2.95
2.90
+VO @ RL = 2kΩ
2.85
2.80
VS = 3V
2.75
–40
25
85
125
TEMPERATURE (°C)
Figure 13. Output Voltage Swing vs. Temperature, VS = 3 V
160
VS = 3V
140
TA = 25°C
120
100
80
60
40
90
20
45
0
0
–20
–45
–40
100
1k
–90
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 14. Open-Loop Gain and Phase vs. Frequency, VS = 3 V
1200
1000
RL = 100kΩ,
VCM = 2.9V
RL = 100kΩ,
800
VCM = 0.1V
600
400
200
VS = 3V, VO = 0.3V/2.7V
0
–40
25
85
125
TEMPERATURE (°C)
Figure 15. Open-Loop Gain vs. Temperature, VS = 3 V
OP191/OP291/OP491
50
40
VS = 3V
TA = 25°C
30
20
10
0
–10
–20
–30
–40
–50
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 16. Closed-Loop Gain vs. Frequency, VS = 3 V
160
CMRR
140
VS = 3V
TA = 25°C
120
100
80
60
40
20
0
–20
–40
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 17. CMRR vs. Frequency, VS = 3 V
90
VS = 3V
89
88
87
86
85
84
–40
25
85
125
TEMPERATURE (°C)
Figure 18. CMRR vs. Temperature, VS = 3 V
Rev. D | Page 9 of 24
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