Multiple input variable gain amplifier
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United States of America Patent
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Jun 4, 2013
Grant Date -
Nov 4, 2010
app pub date -
May 11, 2009
filing date -
May 19, 2008
priority date (Note) -
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Abstract
A variable gain amplifier (VGA) disclosed herein includes: an input voltage connector; a number of voltage to current converter circuits generating signal currents; a gain adjustment connector adapted to a current steering mechanism; current mirrors connected to each of the voltage to current converters copying the signal currents; and a steering mechanism adapted to steer the copied currents to a load resistor or to another appropriate location based on the signal present at the gain adjustment connector.
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