Multi-amplifier circuit
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United States of America Patent
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May 19, 2009
Grant Date -
N/A
app pub date -
Sep 27, 2007
filing date -
Mar 3, 2004
priority date (Note) -
Expired
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Abstract
A differential transimpedance amplifier circuit comprises a first amplifier, a second amplifier and a first resistance having one end that communicates with the input of the first amplifier. A second resistance has one end that communicates with the second amplifier. A fourth amplifier has an input that communicates with the output of a third amplifier. Third and fourth resistances communicate with the input and output of the third and fourth amplifiers, respectively. Fifth and sixths amplifiers have an input that communicates with the output of the second and fifth amplifiers, respectively. Seventh and eighth amplifiers have an input that communicates with the output of the fourth, seventh amplifier. An opposite end of the first resistance communicates with the output of the eighth amplifier, and an opposite end of the third resistance communicates with the output of the sixth amplifier.
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