Analog amplifier having DC offset cancellation circuit and method of offset cancellation for analog amplifiers
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United States of America Patent
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May 12, 2009
Grant Date -
Jan 18, 2007
app pub date -
May 24, 2006
filing date -
Jul 12, 2005
priority date (Note) -
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Abstract
An amplifier having DC offset compensation includes at least one input node and a pair of differential output nodes, a biasing circuit coupled to the input node; and a plurality of current sources. Selected ones of said current sources are coupled to the input node to adjust a DC voltage at the input node to provide DC offset compensation for the amplifier
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