AD8055/AD8056
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
402Ω
402Ω
402Ω
180
135
90
50Ω
58Ω
402Ω
45
0
–45
–90
10k
100k
1M
10M
100M
500M
0.1
1
10
FREQUENCY (MHz)
100
500
FREQUENCY (Hz)
Figure 24. CMRR vs. Frequency
Figure 27. Phase vs. Frequency
0.04
0.02
G = +2
V
(1V/DIV)
1 BACK TERMINATED LOAD (150Ω)
IN
R
R
= 100Ω
L
F
S
= 402Ω
= ±5V
V
V
(2V/DIV)
OUT
0
G = +2
= 402Ω
–0.02
R
F
–0.04
1ST 2ND 3RD 4TH 5TH 6TH 7TH 8TH 9TH 10TH 11TH
IRE
0.04
0.02
1 BACK TERMINATED LOAD (150Ω)
0
–0.02
–0.04
G = +2
F
50ns
R
= 402Ω
1ST 2ND 3RD 4TH 5TH 6TH 7TH 8TH 9TH 10TH 11TH
IRE
Figure 25. Overload Recovery
Figure 28. Differential Gain and Differential Phase
90
80
70
60
50
40
30
20
10
0
0.04
0.02
4 VIDEO LOADS (37.5Ω)
R
= 100Ω
L
0
G = +2
–0.02
R
= 402Ω
F
–0.04
1ST 2ND 3RD 4TH 5TH 6TH 7TH 8TH 9TH 10TH 11TH
IRE
0.15
0.10
4 VIDEO LOADS (37.5Ω)
0.05
0
–0.05
–0.10
G = +2
R
= 402Ω
F
–10
0.01
–0.15
1ST 2ND 3RD 4TH 5TH 6TH 7TH 8TH 9TH 10TH 11TH
IRE
0.1
1
10
100
500
FREQUENCY (MHz)
Figure 26. Open-Loop Gain vs. Frequency
Figure 29. Differential Gain and Differential Phase
Rev. J | Page 9 of 16
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