參數(shù)資料
型號(hào): ADA4891-4ARZ-RL
廠商: Analog Devices Inc
文件頁(yè)數(shù): 23/24頁(yè)
文件大小: 0K
描述: IC OPAMP GP R-R CMOS 14SOIC
標(biāo)準(zhǔn)包裝: 2,500
放大器類型: 通用
電路數(shù): 4
輸出類型: 滿擺幅
轉(zhuǎn)換速率: 210 V/µs
-3db帶寬: 240MHz
電流 - 輸入偏壓: 2pA
電壓 - 輸入偏移: 2500µV
電流 - 電源: 4.4mA
電流 - 輸出 / 通道: 125mA
電壓 - 電源,單路/雙路(±): 2.7 V ~ 5.5 V,±1.35 V ~ 2.75 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 14-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 14-SOIC
包裝: 帶卷 (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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