Noise reduction scheme for operational amplifiers
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United States of America Patent
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May 20, 2003
Grant Date -
Dec 20, 2001
app pub date -
Jul 18, 2001
filing date -
Jan 4, 1999
priority date (Note) -
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Abstract
Methods and apparatus are described for generating or amplifying a differential signal. The output of a first op amp corresponds to one end of the differential signal. The output of a second op amp corresponds to the other end of the differential signal. The inverting input of the first op amp is coupled to the noninverting input of the second op amp.
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