AD8055/AD8056
0
–10
–20
–30
CMRR (dB)
402Ω
402Ω
58Ω
402Ω
180
50Ω
135
PHASE (Degrees)
402Ω
–40
–50
–60
–70
–80
–90
01063-026
90
45
0
–45
–90
10k
1
10
FREQUENCY (MHz)
100
500
100k
1M
10M
FREQUENCY (Hz)
100M
500M
Figure 24. CMRR vs. Frequency
DIFFERENTIAL GAIN (%)
0.04
0.02
0
–0.02
–0.04
0.04
0.02
0
–0.02
–0.04
Figure 27. Phase vs. Frequency
G = +2
R
L
= 100Ω
R
F
= 402Ω
V
S
= ±5V
V
IN
(1V/DIV)
V
OUT
(2V/DIV)
1 BACK TERMINATED LOAD (150Ω)
G = +2
R
F
= 402Ω
1ST 2ND 3RD 4TH 5TH 6TH 7TH 8TH 9TH 10TH 11TH
IRE
1 BACK TERMINATED LOAD (150Ω)
DIFFERENTIAL PHASE
(Degrees)
01063-027
50ns
G = +2
R
F
= 402Ω
1ST 2ND 3RD 4TH 5TH 6TH 7TH 8TH 9TH 10TH 11TH
IRE
01063-030
01063-031
Figure 25. Overload Recovery
90
80
70
OPEN-LOOP GAIN (dB)
Figure 28. Differential Gain and Differential Phase
DIFFERENTIAL GAIN (%)
0.04
0.02
0
–0.02
–0.04
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
G = +2
R
F
= 402Ω
1ST 2ND 3RD 4TH 5TH 6TH 7TH 8TH 9TH 10TH 11TH
IRE
G = +2
R
F
= 402Ω
1ST 2ND 3RD 4TH 5TH 6TH 7TH 8TH 9TH 10TH 11TH
IRE
4 VIDEO LOADS (37.5Ω)
4 VIDEO LOADS (37.5Ω)
R
L
= 100Ω
60
50
40
30
20
10
0
0.1
1
10
FREQUENCY (MHz)
100
500
01063-028
–10
0.01
DIFFERENTIAL PHASE
(Degrees)
Figure 26. Open-Loop Gain vs. Frequency
Figure 29. Differential Gain and Differential Phase
Rev. J | Page 9 of 16
01063-029
–100
0.1
AD [ ANALOG DEVICES ]
