Circuit and method for compensating for offset voltage
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United States of America Patent
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Jun 5, 2007
Grant Date -
Aug 24, 2006
app pub date -
Apr 29, 2005
filing date -
Feb 23, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A circuit for compensating for an offset voltage in a PhotoDetector Integrated Circuit (PDIC). The circuit includes a temperature detection unit, a current transfer unit and a current adjustment unit. The temperature detection unit generates a current that varies with variation in surrounding temperature. The current transfer unit transfers the generated current. The current adjustment unit adjusts the current transferred from the current transfer unit at a predetermined ratio and outputs the adjusted current.
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