Low leakage ESD structure for non-contact bio-signal sensors
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United States of America Patent
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Jul 15, 2014
Grant Date -
Oct 4, 2012
app pub date -
Mar 26, 2012
filing date -
Apr 1, 2011
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Abstract
Various techniques for providing a low leakage electrostatic discharge (ESD) structure for non-contact bio-signal sensors are disclosed. In some embodiments, a low leakage ESD structure for a capacitive bio-sensor includes a unity gain buffer, and an ESD protection circuit connected to the unity gain buffer, in which the ESD protection circuit includes a diode connected across an input and an output of the unity gain buffer, and in which a voltage range for the ESD protection circuit is configurable.
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