Thursday, April 14, 2011

Description and Applications about electronic component DG408

The electronic components  DG408 and DG409 feature lower signal ON resistance (<100Ω) and faster switch transition time (tTRANS < 250ns) compared to the DG508A or DG509A. Charge injection has
been reduced, simplifying sample and hold applications. The improvements in the DG408
series are made possible by using a high-voltage silicon-gate process. An epitaxial layer
prevents the latch-up associated with older CMOS technologies. Power supplies may be

single-ended from +5V to +34V, or split from ±5V to ±20V.
The analog switches are bilateral, equally matched for AC or bidirectional signals. The ON
resistance variation withanalog signals is quite low over a ±5V analog input range.

Applications
1.Data Acquisition Systems
2.Audio Switching Systems
3.Automatic Testers
4.Hi-Rel Systems
5.Sample and Hold Circuits
6.Communication Systems
7.Analog Selector Switch

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