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參數資料
| 型號： | DG408 |
| 廠商： | Intersil Corporation |
| 英文描述： | Single 8-Channel/Differential 4-Channel, CMOS Analog Multiplexers(單8通道、差分4通道COMS模擬多復用器) |
| 中文描述： | 改進的8路/雙4路、CMOS模擬多路復用器 |
| 文件頁數： | 8/17頁 |
| 文件大小： | 606K |
| 代理商： | DG408 |
8
FN3283.8
June 13, 2006
Typical Applications
Overvoltage Protection
A very convenient form of overvoltage protection consists of
adding two small signal diodes (1N4148, 1N914 type) in
series with the supply pins (see Figure 9). This arrangement
effectively blocks the flow of reverse currents. It also floats
the supply pin above or below the normal V+ or V- value. In
this case the overvoltage signal actually becomes the power
supply of the IC. From the point of view of the chip, nothing
has changed, as long as the difference V+ - (V-) doesn’t
exceed 44V. The addition of these diodes will reduce the
analog signal range to 1V below V+ and 1V above V-, but it
preserves the low channel resistance and low leakage
characteristics.
Typical application information is for Design Aid Only, not
guaranteed and not subject to production testing.
FIGURE 7. INSERTION LOSS
FIGURE 8. SOURCE/DRAIN CAPACITANCES
Test Circuits and Waveforms
(Continued)
A
2
A
1
A
0
GND
EN
D
V
-
V+
V
O
+15V
-
15V
SIGNAL
GENERATOR
V
IN
5V
R
L
ANALYZER
INSERTION LOSS
20 Log
VIN
=
S
1
IMPEDANCE
ANALYZER
A
2
GND
A
1
EN
V
-
V+
+15V
-
15V
A
0
CHANNEL
SELECT
3V OR 0V
S
8
S
1
|
|
D
1N4148
1N4148
DG408
V
-
V
G
S
X
V+
D
FIGURE 9. OVERVOLTAGE PROTECTION USING BLOCKING
DIODES
DG408, DG409
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| DG412DY-T | SPST Analog Switch |
| DG413DY-T | SPST Analog Switch |
| DG413AK | Improved, Quad, SPST Analog Switches |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| DG408/883 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Single 8-Channel/Differential 4-Channel CMOS Analog Multiplexers |
| DG408_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Single 8-Channel/Differential 4-Channel, CMOS Analog Multiplexers |
| DG408_10 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:8-Ch/Dual 4-Ch High-Performance CMOS Analog Multiplexers |
| DG408_11 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:8-Ch/Dual 4-Ch High-Performance CMOS Analog Multiplexers |
| DG408883 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Single 8-Channel/Differential 4-Channel CMOS Analog Multiplexers |
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