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| OPA659_15 Datasheet, PDF (11/35 Pages) Texas Instruments – OPA659 Wideband, Unity-Gain Stable, JFET-Input Operational Amplifier | |||
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www.ti.com
OPA659
SBOS342C â DECEMBER 2008 â REVISED NOVEMBER 2015
At VS = ±6 V, RF = 0 â¦, G = 1 V/V, and RL = 100 â¦, unless otherwise noted.
5
60
CL = 10pF, RISO = 30.1W
50
0
CL = 100pF, RISO = 12.1W
40
-5
30
CL = 1000pF, RISO = 5W
-10
20
AOL Phase
AOL Gain
10
-15
0
-20
VS = ±6.0V
-10
G = +1V/V
-25
-20
100k
1M
10M
100M
1G
10k
100k
1M
10M
100M
Frequency (Hz)
Frequency (Hz)
0
-45
-90
-135
-180
1G
Figure 25. Frequency Response vs Capacitive Load
(RLOAD = 1 kΩ)
1k
VS = ±6.0V
G = +1V/V
100
10
1
0.1
0.01
100k
1M
10M
100M
1G
Frequency (Hz)
Figure 26. Open-Loop Gain and Phase
130
120
110
100
90
80
70
60
50
40
100k
RF = 1MW, CF = Open
RF = 100kW, CF = Open
RF = 100kW,
CF = 0.25pF
RF = 10kW,
CF = Open
RF = 10kW, CF = 1pF
RF = 1kW, CF = Open
RF = 1kW, CF = 3.3pF
1M
10M
Frequency (Hz)
100M
Figure 27. Closed-Loop Output Impedance vs Frequency
130
RF = 1MW, CF = Open
120
RF = 100kW, CF = Open
110
RF = 10kW,
100
90
RF = 100kW,
CF = 0.5pF
CF = Open
80
70
RF = 10kW, CF = 1.5pF
RF = 1kW, CF = Open
60
50
40
100k
RF = 1kW, CF = 4.7pF
1M
10M
Frequency (Hz)
100M
Figure 28. Transimpedance Gain vs Frequency (CD = 10 pF)
130
RF = 1MW, CF = Open
120
RF = 1MW,
110 CF = 0.25pF
RF = 100kW, CF = Open
RF = 10kW,
100
90
RF = 100kW,
CF = 0.5pF
CF = Open
80
70
RF = 10kW, CF = 1.5pF
RF = 1kW, CF = Open
60
50
RF = 1kW, CF = 4.7pF
40
100k
1M
10M
Frequency (Hz)
100M
Figure 29. Transimpedance Gain vs Frequency (CD = 22 pF)
Figure 30. Transimpedance Gain vs Frequency (CD = 47 pF)
Copyright © 2008â2015, Texas Instruments Incorporated
Product Folder Links: OPA659
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