Datasheet

AD8051/AD8052/AD8054
Rev. J | Page 11 of 24
FREQUENCY (MHz)
6.3
6.2
5.3
0.1 100
5.9
5.6
5.5
5.4
6.1
6.0
5.7
5.8
GAIN FLATNESS (dB)
1 10
01062-013
V
S
= 5V
G = +2
R
L
= 150Ω
R
F
= 806Ω
V
OUT
= 0.2V p-p
Figure 13. AD8051/AD8052 0.1 dB Gain Flatness vs. Frequency; G = +2
FREQUENCY (MHz)
9
8
–1
5
2
1
0
7
6
3
4
GAIN (dB)
V
S
= +5V
V
OUT
= 2V p-p
V
S
AS SHOWN
G = +2
R
F
= 2kΩ
R
L
= 2kΩ
V
OUT
AS SHOWN
V
S
= ±5V
V
OUT
= 4V p-p
0.1 1 10 100 500
01062-014
Figure 14. AD8051/AD8052 Large Signal Frequency Response; G = +2
FREQUENCY (MHz)
80
70
–20
40
10
0
–10
60
50
20
30
0
–45
–90
–135
–180
GAIN
PHASE
OPEN-LOOP GAIN (dB)
PHASE MARGIN (Degrees)
50° PHASE
MARGIN
0.01 0.1 1 10 100 500
V
S
= 5V
R
L
= 2kΩ
01062-015
Figure 15. AD8051/AD8052 Open-Loop Gain and Phase vs. Frequency
6.3
5.9
5.4
6.2
6.1
6.0
5.8
5.7
5.6
5.5
110010
FREQUENCY (MHz)
GAIN FLATNESS (dB)
5.3
01062-016
V
S
= 5V
R
F
= 200Ω
R
L
= 150Ω
G = +2
V
OUT
= 0.2V p-p
Figure 16. AD8054 0.1 dB Gain Flatness vs. Frequency; G = +2
FREQUENCY (MHz)
9
8
–1
5
2
1
0
7
6
3
4
GAIN (dB)
0.1 1 10 100 500
01062-017
V
S
= ±5V
V
OUT
= 4V p-p
V
S
AS SHOWN
G = +2
R
F
= 2kΩ
R
L
= 2kΩ
V
OUT
AS SHOWN
V
S
= +5V
V
OUT
= 2V p-p
Figure 17. AD8054 Large Signal Frequency Response; G = +2
GAIN
PHASE
180
135
90
45
0
FREQUENCY (Hz)
80
70
–20
40
10
0
–10
60
50
20
30
OPEN-LOOP GAIN (dB)
PHASE MARGIN (Degrees)
45° PHASE
MARGIN
30k 100k 1M 10M 100M 500M
V
S
= 5V
R
L
= 2kΩ
C
L
= 5pF
01062-018
Figure 18. AD8054 Open-Loop Gain and Phase Margin vs. Frequency