Class AB rail-to-rail operational amplifier
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United States of America Patent
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Mar 6, 2007
Grant Date -
Apr 14, 2005
app pub date -
Sep 21, 2004
filing date -
Oct 13, 2003
priority date (Note) -
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Abstract
The static bias current of the output stage circuit of the class AB rail-to-rail operational amplifier is controlled by the external bias control signals. The class AB rail-to-rail operational amplifier receives the external bias control signals and controls the bias voltage of the output stage circuit, and thus the static bias current of the output stage circuit may be controlled. The class AB rail-to-rail operational amplifier may further include a frequency compensation circuit for compensating high frequency characteristics of the operational amplifier.
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