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参数资料
| 型号： | DG243 |
| 厂商： | Vishay Intertechnology,Inc. |
| 英文描述： | General Purpose Monolithic Dual SPDT CMOS Analog Switch(通用单片双单刀双掷CMOS模拟开关) |
| 中文描述： | 通用单片双路SPDT CMOS模拟开关（通用单片双单刀双掷的CMOS模拟开关） |
| 文件页数： | 4/4页 |
| 文件大小： | 56K |
| 代理商： | DG243 |
DG243
4
Siliconix
S-52880—Rev. B, 28-Apr-97
Applications
The make-before-break operation of the DG243 provides
simple transient suppression in these two important
applications.
Figure 3 shows a minimum amount of glitching during
changes of gain states. The relatively low impedance of
the gain setting resistors (10 k
the injected charge-to-ground minimizing transient
, 1 k
, and 100 ) shunt
effects occurring at the inverting input of the op amp.
Consequently, these transients are not amplified to V
OUT
.
Figure 4 takes advantage of the make-before-break
operation of the DG243 by shorting transition current to
real ground instead of virtual ground. The best results are
obtained by selecting an op amp with the proper offset
voltage specification.
Figure 4.
Minimizing Glitches in Audio Switching
V
OUT
S
3
S
1
IN
1
D
3
100
D
1
1 k
10 k
High Speed Op Amp
+
–
V
IN
1
/
2
DG243
V
IN
V
OUT
IN
Clean transitions no glitches due to op amp open loop.
V
OUT
S
2
S
1
IN
2
D
2
D
1
–
+
V
IN1
DG243
Op Amp
IN
1
V
IN2
Figure 5.
Make-Before-Break Improves Transient Response in Programmable Gain Amplifiers
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| DG2518 | 3ohm, High Bandwidth, Dual SPDT Analog Switch |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DG24320C5PC | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:5.7 Inch 320 x 3 (RGB) x 240 Dots STN Color LCD Module |
| DG243AK | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Monolithic General Purpose CMOS Analog Switch |
| DG243AK/883 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Monolithic General Purpose CMOS Analog Switch |
| DG243CJ | 制造商: 功能描述: 制造商:undefined 功能描述: |
| DG243CK | 制造商:SILCONIX 功能描述:Analog Switch, Dual, DPST, 16 Pin, Ceramic, DIP |
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