High-performance analog switch
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United States of America Patent
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May 10, 2011
Grant Date -
May 6, 2010
app pub date -
Oct 30, 2008
filing date -
Oct 30, 2008
priority date (Note) -
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Abstract
Techniques for designing a high performance analog switch for use in electronic circuit applications. In one aspect, a variable bulk voltage generation module is provided to vary the bulk voltage of a transistor in the switch, such that the threshold voltage of the transistor is reduced during the on state. In another aspect, a pulling transistor is provided to pull a middle node of the switch to a DC voltage during the off state to further increase the isolation provided by the switch.
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