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