SWITCHED CAPACITOR APPARATUS PROVIDING INTEGRATION OF AN INPUT SIGNAL
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United States of America Patent
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Issued Date -
Dec 17, 2009
app pub date -
Jun 12, 2009
filing date -
Jun 13, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An apparatus includes an operational amplifier, a switched capacitor network, an optical sensor, and a clock. The switched capacitor network is coupled to an input terminal of the operational amplifier and coupled to an output terminal of the operational amplifier. The optical sensor includes a sensor output coupled to the switched capacitor network. The clock is coupled to at least one switch of the switched capacitor network. The clock is configured to activate the at least one switch to provide an integrated output at the output terminal corresponding to the sensor output.
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