Area efficient, programmable-gain amplifier
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United States of America Patent
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Mar 25, 2014
Grant Date -
Mar 24, 2011
app pub date -
Aug 16, 2010
filing date -
Aug 14, 2009
priority date (Note) -
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Abstract
A reconfigurable network arrangement of resistors and switches is constructed so that it can be coupled to one or more operational amplifiers and selectively programmed so as to set the gain of the resulting amplifier. The configuration of the network arrangement of resistors and switches to include resistors that can be connected in the feedback path in series and in parallel with each other is such as to provide a wider selection of gain settings, without the need to increase the physical area of the switches on a integrated circuit arrangement.
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