参数资料
型号: ADA4891-4ARZ-R7
厂商: Analog Devices Inc
文件页数: 23/24页
文件大小: 0K
描述: IC OPAMP GP R-R CMOS 14SOIC
标准包装: 1,000
放大器类型: 通用
电路数: 4
输出类型: 满摆幅
转换速率: 210 V/µs
-3db带宽: 240MHz
电流 - 输入偏压: 2pA
电压 - 输入偏移: 2500µV
电流 - 电源: 4.4mA
电流 - 输出 / 通道: 125mA
电压 - 电源,单路/双路(±): 2.7 V ~ 5.5 V,±1.35 V ~ 2.75 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 14-SOIC(0.154",3.90mm 宽)
供应商设备封装: 14-SOIC
包装: 带卷 (TR)
ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4
Data Sheet
Rev. E | Page 8 of 24
C
LOS
E
D
-LOO
P
G
AI
N
(
d
B)
FREQUENCY (MHz)
–6
–5
–4
–3
–2
–1
0
3
4
5
6
1
2
7
0.1
1
10
100
1k
+125°C
+25°C
0°C
–40°C
VS = 3V
G = +1
VOUT = 200mV p-p
RL = 1kΩ
08054-
031
+85°C
Figure 13. Small-Signal Frequency Response vs. Temperature, VS = 3 V,
ADA4891-1/ADA4891-2
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
1
0.1
10
100
FREQUENCY (MHz)
N
OR
M
A
LIZE
D
C
LOS
E
D
-LOO
P
G
AI
N
(
d
B)
G = +2
RF = 604Ω
RL = 150Ω
VS = 3V
VOUT = 2V p-p
VS = 5V
VOUT = 1.4V p-p
VS = 3V
VOUT = 1.4V p-p
08054-
019
VS = 5V
VOUT = 2V p-p
Figure 14. 0.1 dB Gain Flatness vs. Supply Voltage, G = +2,
ADA4891-1/ADA4891-2
–10
–9
–8
–7
–6
–5
–4
–3
–2
–1
0
1
0.1
1
10
100
1k
N
OR
M
A
LIZE
D
C
LOS
E
D
-LOO
P
G
AI
N
(
d
B)
FREQUENCY (MHz)
VS = 5V
RL = 150Ω
VOUT = 2V p-p
G = +1
RF = 0Ω
G = –1
RF = 604Ω
G = +2
RF = 604Ω
G = +5
RF = 604Ω
08054-
036
Figure 15. Large-Signal Frequency Response vs. Gain, VS = 5 V,
ADA4891-1/ADA4891-2
C
LOS
E
D
-LOO
P
G
AI
N
(
d
B)
FREQUENCY (MHz)
–6
–5
–4
–3
–2
–1
0
3
4
5
6
1
2
7
0.1
1
10
100
1k
VS = 3V
G = +1
VOUT = 200mV p-p
RL = 1kΩ
08054-
079
+125°C
+85°C
+25°C
0°C
–40°C
Figure 16. Small-Signal Frequency Response vs. Temperature, VS = 3 V,
ADA4891-3/ADA4891-4
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
0.1
1
10
100
FREQUENCY (MHz)
N
OR
M
A
LIZE
D
C
LOS
E
D
-LOOP
GA
IN
(
dB
)
08054-
080
VS = 3V
VOUT = 1.4V p-p
VS = 3V
VOUT = 2V p-p
VS = 5V
VOUT = 2V p-p
G = +2
RF = 374
RL = 150
VS = 5V
VOUT = 1.4V p-p
Figure 17. 0.1 dB Gain Flatness vs. Supply Voltage, G = +2,
ADA4891-3/ADA4891-4
1
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
0.1
1
10
100
1k
FREQUENCY (MHz)
N
OR
M
A
LIZE
D
C
LOS
E
D
-LOOP
GA
IN
(
dB
)
08054-
081
VS = 5V
RL = 150
VOUT = 2V p-p
G = +1
RF = 0
G = –1
RF = 453
G = +5
RF = 453
G = +2
RF = 453
Figure 18. Large-Signal Frequency Response vs. Gain, VS = 5 V,
ADA4891-3/ADA4891-4
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