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数据表
典型性能特性
3
2
ADA4898-1/ADA4898-2
归一化闭环增益（分贝）
1
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
–11
–12
1
R
L
= 1k
V
OUT
= 100mV的P-P
V
S
= ±15V
07037-004
归一化闭环增益（分贝）
G = +1
R
F
= 100
3
G = +1
R
F
= 0
2
1
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
–11
–12
1
R
L
= 1k
V
OUT
= 2V峰 - 峰值
V
S
= ±15V
10
频率（MHz）
100
07037-007
07037-009
07037-008
G = +1
R
F
= 0
G = +1
R
F
= 100
G = +2
R
F
= 100
G = +5
R
F
= 100
G = +2
R
F
= 100
G = +5
R
F
= 100
10
频率（MHz）
100
图7.小信号频率响应为各种增益
图10.大信号频率响应为各种增益
3
2
1
0
R
L
= 1k
1
0
–1
R
L
= 1k
闭环增益（分贝）
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
–11
–12
1
G = +1
V
OUT
= 100mV的P-P
V
S
= ±15V
10
频率（MHz）
100
07037-005
闭环增益（分贝）
–2
–3
–4
–5
–6
–7
–8
–9
–10
–11
–12
1
G = +1
V
OUT
= 2V峰 - 峰值
V
S
= ±15V
10
频率（MHz）
100
R
L
= 100
R
L
= 200
R
L
= 100
R
L
= 200
图8.小信号频率响应为各种负载
图11.大信号频率响应为各种负载
2
1
0
–1
T
A
= +105°C
T
A
= +85°C
2
1
0
–1
T
A
= +105°C
T
A
= +85°C
闭环增益（分贝）
闭环增益（分贝）
–2
–3
–4
–5
–6
–7
–8
–9
–10
–11
–12
1
G = +1
R
L
= 1k
V
OUT
= 100mV的P-P
V
S
= ±15V
–2
–3
–4
–5
–6
–7
–8
–9
–10
–11
G = +1
R
L
= 1k
V
OUT
= 2V峰 - 峰值
V
S
= ±15V
1
10
频率（MHz）
100
T
A
= –40°C
T
A
= 0°C
T
A
= +25°C
T
A
= +25°C
T
A
= 0°C
T
A
= –40°C
10
频率（MHz）
100
07037-006
–12
图9.小信号频率响应各种温度
图12.大信号频率响应各种温度
修订版D |第20页第7
