Datasheet

AD8657
Rev. A | Page 16 of 24
0
0.5
1.0
1.5
2.0
2.5
3.0
10 100 1k 10k 100k 1M
OUTPUT SWING (V)
FREQUENCY (Hz)
V
SY
= 2.7V
V
IN
= 2.6V
R
L
= 1MΩ
A
V
= 1
08804-050
Figure 57. Output Swing vs. Frequency
0.01
0.1
1
10
100
10 100 1k 10k 100k
THD + N (%)
FREQUENCY (Hz)
V
SY
= 2.7V
V
IN
= 0.2V rms
R
L
= 1MΩ
A
V
= 1
08804-051
Figure 58. THD + N vs. Frequency
–140
–120
–100
–80
–60
–40
–20
0
100 1k 10k 100k
CHANNEL SEPARATION (dB)
FREQUENCY (Hz)
V
IN
= 0.5V p-p
V
IN
= 1.5V p-p
V
IN
= 2.6V p-p
V
SY
= 2.7V
R
L
= 1MΩ
A
V
= –100
08804-052
R
L
1MΩ
10kΩ
Figure 59. Channel Separation vs. Frequency
10 100 1k 10k 100k 1M
OUTPUT SWING (V)
FREQUENCY (Hz)
0
2
4
6
8
10
12
14
16
18
20
V
SY
= 18V
V
IN
= 17.9V
R
L
= 1MΩ
A
V
= 1
08804-053
Figure 60. Output Swing vs. Frequency
0.01
0.1
1
10
100
10 100 1k 10k 100k
THD + N (%)
FREQUENCY (Hz)
V
SY
= 18V
V
IN
= 0.2V rms
R
L
= 1MΩ
A
V
= 1
08804-054
Figure 61. THD + N vs. Frequency
–140
–120
–100
–80
–60
–40
–20
0
100 1k 10k
100k
CHANNEL SEPARATION (dB)
FREQUENCY (Hz)
V
SY
= 18V
R
L
= 1MΩ
A
V
= –100
V
IN
= 1V p-p
V
IN
= 5V p-p
V
IN
= 10V p-p
V
IN
= 15V p-p
V
IN
= 17V p-p
08804-055
R
L
1MΩ
10kΩ
Figure 62. Channel Separation vs. Frequency