Electronic switch exhibiting low off-state leakage current
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United States of America Patent
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Feb 19, 2019
Grant Date -
Jan 11, 2018
app pub date -
Oct 28, 2016
filing date -
Jul 8, 2016
priority date (Note) -
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Abstract
According to some aspects, a low-leakage switch is provided. In some embodiments, the low-leakage switch includes a plurality of pass transistors in series that selectively couple two ports of the low-leakage switch and a node biasing circuit coupled to a node between the plurality of pass transistors. In these embodiments, the node biasing circuit may adjust a voltage at the node to change the gate-to-source voltage of the pass transistors and, thereby, reduce the leakage current through the pass transistors when the low-leakage switch is turned off. The node biasing circuit may also include circuitry to reduce the leakage current introduced by the node biasing circuit into the node when the low-leakage switch is turned on.
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