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OPA681U 参数 Datasheet PDF下载

OPA681U图片预览
型号: OPA681U
PDF下载: 下载PDF文件 查看货源
内容描述: 宽带电流反馈运算放大器,具有禁用 [Wideband, Current Feedback OPERATIONAL AMPLIFIER With Disable]
分类和应用: 运算放大器
文件页数/大小: 21 页 / 242 K
品牌: BURR-BROWN [ BURR-BROWN CORPORATION ]
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TYPICAL PERFORMANCE CURVES: V
S
=
±
5V
G = +2, R
F
= 402Ω, and R
L
= 100Ω, unless otherwise noted (see Figure 1).
SMALL-SIGNAL FREQUENCY RESPONSE
2
1
Normalized Gain (1dB/div)
8
LARGE-SIGNAL FREQUENCY RESPONSE
7
6
G = +2, R
L
= 100Ω
G = +1, R
F
= 453Ω
G = +2, R
F
= 402Ω
0
Gain (1dB/div)
–1
–2
–3
–4
–5
–6
–7
–8
0
125MHz
Frequency (25MHz/div)
250MHz
G = +10, R
F
= 180Ω
G = +5, R
F
= 261Ω
5
4
3
2
1
0
–1
–2
0
125MHz
Frequency (25MHz/div)
7Vp-p
4Vp-p
2Vp-p
1Vp-p
250MHz
SMALL-SIGNAL PULSE RESPONSE
400
+4
G = +2
V
O
= 0.5Vp-p
+3
LARGE-SIGNAL PULSE RESPONSE
G = +2
V
O
= 5Vp-p
Output Voltage (100mV/div)
300
200
100
0
–100
–200
–300
–400
Time (5ns/div)
Output Voltage (1V/div)
+2
+1
0
–1
–2
–3
–4
Time (5ns/div)
LARGE-SIGNAL DISABLE/ENABLE RESPONSE
V
DIS
(2V/div)
DISABLED FEEDTHROUGH vs FREQUENCY
6.0
–45
–50
Feedthrough (5dB/div)
V
DIS
Output Voltage (400mV/div)
4.0
2.0
0
V
DIS
= 0
–55
–60
–65
–70
–75
–80
–85
–90
–95
Forward
Reverse
2.0
1.6
1.2
0.8
0.4
0
G = +2
V
IN
= +1V
Output Voltage
Time (50ns/div)
1
10
Frequency (MHz)
100
®
5
OPA681