AD9631/AD9632
AD9631 -典型特征
1
0
–1
–2
增益 - 分贝
R
F
200
V
S
=
±5V
R
L
= 100
V
O
= 300mV的P-P
R
F
50
R
F
450
V
S
=
±5V
R
L
= 100
增益= 1
400
-3dB带宽 - 兆赫
R
F
150
R
F
100
130
AD9631
R
L
–3
–4
–5
–6
–7
–8
–9
1M
N包装
350
300
了R封装
250
10M
100M
1G
20
40
60
80
100
120
140
160 180
200
220
240
频率 - 赫兹
反馈电阻值（R
F
) –
图15. AD9631小信号频率响应
G = +1
图18. AD9631小信号的-3 dB带宽与
F
0.1
0
–0.1
–0.2
增益 - 分贝
1
0
R
F
250
–0.3
–0.4
–0.5
–0.6
–0.7
–0.8
–0.9
1M
R
F
120
输出 - 分贝
V
S
=
±5V
R
L
= 100
G = +1
VO = 300mV的P-P
R
F
100
R
F
150
R
F
140
–1
–2
–3
–4
–5
–6
–7
–8
–9
1M
V
S
=
±5V
V
O
= 4V P-P
R
L
= 100
R
F
= 50
TO
BY 250Ω 50Ω
10M
频率 - 赫兹
100M
500M
10M
频率 - 赫兹
100M
500M
图16. AD9631 0.1 dB平坦度，N包（对R
包添加20
与R
F
)
图19. AD9631大信号频率响应，
G = +1
90
80
70
相
60
50
增益 - 分贝
40
30
20
10
0
–10
–20
10k
100k
1M
10M
100M
收益
100
80
60
相位裕度 - 度
40
20
0
–20
–40
–60
–80
–100
–120
1G
1
0
–1
–2
增益 - 分贝
–3
–4
–5
–6
–7
–8
–9
1M
V
S
=
±5V
R
L
= 100
V
O
= 300mV的P-P
R
F
267
频率 - 赫兹
10M
100M
频率 - 赫兹
1G
图17. AD9631开环增益和相位裕度对比
频率，R
L
= 100
图20. AD9631小信号频率响应，
G = –1
REV 。一
–6–
