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OP491GBC Datasheet(PDF) 9 Page - Analog Devices

Part # OP491GBC
Description  Micropower Single-Supply Rail-to-Rail Input/Output Op Amps
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

OP491GBC Datasheet(HTML) 9 Page - Analog Devices

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


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