System and method for leakage current control for programmable gain amplifiers
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United States of America Patent
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Aug 8, 2017
Grant Date -
Dec 17, 2015
app pub date -
Jun 16, 2015
filing date -
Jun 16, 2014
priority date (Note) -
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Abstract
A system that utilizes an amplified signal is disclosed that includes a plurality of first switches coupled to a plurality of first impedances. A plurality of second switches coupled to a plurality of second impedances. An amplifier having a first input coupled to the plurality of first switches and a second input coupled to the plurality of second switches. A leakage current offset source coupled to the first input of the amplifier, wherein the leakage current offset source cancels a leakage current component of a first current provided from the plurality of first switches to the first input.
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