Datasheet

REV. A–8–
AD8047/AD8048
7
–3
10M 1G100M1M
5
1
3
–1
6
4
0
2
–2
FREQUENCY (Hz)
R
L
= 100
R
F
= R
IN
= 200
V
OUT
= 300mV p-p
OUTPUT (dBm)
TPC 25. AD8048 Small Signal Frequency Response,
G = +2
6.5
5.5
10M 1
G
100M1M
6.3
5.9
6.1
5.7
6.4
6.2
5.8
6.0
5.6
FREQUENCY (Hz)
R
L
= 100
R
F
= R
IN
= 200
V
OUT
= 300mV p-p
OUTPUT (dBm)
TPC 26. AD8048 0.1 dB Flatness, G = +2
70
–20
10k 100k 1G100M10M1M
FREQUENCY (Hz)
60
20
30
40
50
–10
0
10
GAIN (dB)
–40
–120
–20
0
20
–100
–80
–60
PHASE
(
De
g
rees
)
R
L
= 100
PHASE
1k
40
60
80
100
80
90
TPC 27. AD8048 Open-Loop Gain and Phase Margin
vs. Frequency
–3
10M 1G100M1M
5
1
3
–1
6
4
0
2
–2
7
FREQUENCY (Hz)
R
L
= 100
R
F
= R
IN
= 200
V
OUT
= 2V p-p
OUTPUT (dBm)
TPC 28. AD8048 Large Signal Frequency Response,
G = +2
–9
10M 1G100M1M
–1
–5
–3
–7
0
–2
–6
–4
–8
1
FREQUENCY (Hz)
R
L
= 100
R
F
= R
IN
= 200
V
OUT
= 300mV p-p
OUTPUT (dBm)
TPC 29. AD8048 Small Signal Frequency Response,
G = –1
HARMONIC DISTORTION (dBc)
–90
–110
–70
–50
–30
100M1M100k10k
–40
–20
–60
–80
–100
–120
10M
SECOND HARMONIC
THIRD HARMONIC
FREQUENCY (Hz)
R
L
= 1k
V
OUT
= 2V p-p
TPC 30. AD8048 Harmonic Distortion vs. Frequency,
G = +2