Transimpedance amplifier with noise reduction and bandwidth compensation
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United States of America Patent
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Aug 8, 1989
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N/A
app pub date -
Feb 29, 1988
filing date -
Feb 29, 1988
priority date (Note) -
Expired
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Abstract
The signal-to-noise ratio of a transimpedance operational amplifier is enhanced by employing a large feedback resistor. Bandwidth lost in the process recaptured by a compensation network without reducing the signal-to-noise ratio. The compensation network provides a zero which cancels the upper 3 db pole of the transimpedance amplifier, and also provides a high frequency pole defining the restored bandwidth of amplifier.
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