
AD8108/AD8109
–11–
REV. 0
FREQUENCY – Hz
10k
100k
1M
10M
–30
–40
–50
–60
–70
–80
–90
P
R
L
= 150
V
Figure 18. AD8108 PSRR vs. Frequency
n
H
FREQUENCY – Hz
100k
1M
10M
10
100
56.3
31.6
17.8
10
5.63
3.16
10k
1k
100
Figure 19. AD8108 Voltage Noise vs. Frequency
O
FREQUENCY – MHz
0.1
10
100
500
1M
100k
10k
1k
100
1
Figure 20. AD8108 Output Impedance, Disabled
UPDATE
INPUT
TYPICAL VIDEO OUT (RTO)
5
4
3
2
1
0
10
0
–10
1
1
50ns/DIV
SWITCHING BETWEEN
TWO INPUTS
Figure 21. AD8108 Switching Transient (Glitch)
O
FREQUENCY – Hz
100k
10M
100M
500M
1M
V
IN
= 2V p-p
R
L
= 150
V
–50
–60
–70
–80
–90
–100
–110
–120
–130
–40
–140
Figure 22. AD8108 Off Isolation, Input-Output
O
V
1k
100
10
1
FREQUENCY – Hz
100k
10M
100M
500M
0.1
1M
Figure 23. AD8108 Output Impedance, Enabled