Datasheet

AD8129/AD8130
Rev. C | Page 15 of 40
02464-036
FREQUENCY (MHz)
GAIN (dB)
1 30010 100
3
0
–3
–4
–5
–6
–7
–2
–1
1
2
V
S
= ±5V, ±12V
V
S
= ±2.5V
G = +20
R
L
= 150 Ω
Figure 35. AD8129 Frequency Response vs. Supply,
G = +20, R
L
= 150 Ω
02464-037
FREQUENCY (MHz)
GAIN (dB)
0.1 1 10
0.2
–0.1
–0.4
–0.5
–0.6
–0.7
–0.8
–0.3
–0.2
0
0.1
V
S
= ±2.5V
V
S
=
±
1
2
V
V
S
=
±
1
2
V
V
S
= ±5V
V
OUT
= 2V p-p
G
=
+
5
0
G
=
+
1
0
0
Figure 36. AD8129 Fine Scale Response vs. Supply,
G = +50, G = +100, V
OUT
= 2 V p-p
02464-038
FREQUENCY (MHz)
GAIN (dB)
0.1 1 10
3
0
–3
–4
–5
–6
–7
–2
–1
1
2
50
V
OUT
= 2V p-p
G
=
+
1
0
0
G
=
+
5
0
V
S
= ±2.5V
V
S
= ±5V
V
S
=
±
1
2
V
Figure 37. AD8129 Frequency Response vs. Supply,
G = +50, G = +100, V
OUT
= 2 V p-p
02464-039
FREQUENCY (MHz)
GAIN (dB)
0.1 1 10
3
0
–3
–4
–5
–6
–7
–2
–1
1
2
50
R
L
= 150 Ω
G
=
+
1
0
0
G
=
+
5
0
V
S
= ±5V
V
S
= ±2.5V
V
S
=
±
1
2
V
Figure 38. AD8129 Frequency Response vs. Supply,
G = +50, G = +100, R
L
= 150 Ω
02464-040
FREQUENCY (MHz)
OUTPUT VOLTAGE (dBV)
12
6
0
–6
–12
–18
–24
–30
–36
–42
–48
10 100 400
0dB = 1V rms
V
S
= ±5V
Figure 39. AD8129 Frequency Response for Various Output Levels
1
8
4
5
6
R
F
R
G
TEK P6245
FET PROBE
10
20
50
100
R
F G
2kΩ
2kΩ
2kΩ
2kΩ
221Ω
105Ω
41.2Ω
20Ω
R
L
C
L
50Ω
02464-041
R
G
Figure 40. AD8129 Basic Frequency Response Test Circuit