Datasheet

Data Sheet AD8641/AD8642/AD8643
Rev. E | Page 9 of 16
–30 –135
–90
–45
0
45
90
135
180
225
270
315
–20
–10
0
10
20
30
40
50
60
70
10k 100k 1M 10M
PHASE (Degrees)
GAIN
PHASE
GAIN (dB)
FREQUENCY (Hz)
05072-020
V
SY
= 5V
R
L
= 2k Ω
C
L
= 40pF
Figure 25. Open-Loop Gain and Phase Margin vs. Frequency
FREQUENCY (Hz)
–30
–20
–10
0
10
20
30
40
50
60
70
1k 10k 100k 1M 10M
GAIN (dB)
V
SY
= ± 13V
R
L
= 2k Ω
C
L
= 40pF
G = +100
G = +1
G = +10
05072-021
Figure 26. Closed-Loop Gain vs. Frequency
FREQUENCY (Hz)
–30
–20
–10
0
10
20
30
40
50
60
70
1k 10k 100k 1M 10M
GAIN (dB)
G = +100
G = +1
G = +10
05072-022
V
SY
= 5V
R
L
= 2k Ω
C
L
= 40pF
Figure 27. Closed-Loop Gain vs. Frequency
–60
–40
–20
0
20
40
60
80
100
120
140
1k 10k 100k 1M 10M
FREQUENCY (Hz)
CMRR (dB)
05072-023
V
SY
= ± 13V
Figure 28. CMRR vs. Frequency
–60
–40
–20
0
20
40
60
80
100
120
140
1k 10k 100k 1M 10M
FREQUENCY (Hz)
CMRR (dB)
05072-024
V
SY
=5V
Figure 29. CMRR vs. Frequency
–60
–40
–20
0
20
40
60
80
100
120
140
1k 10k 100k 1M 10M
FREQUENCY (Hz)
PSRR (dB)
05072-025
+PSRR
–PSRR
V
SY
= ± 13V
Figure 30. PSRR vs. Frequency