Transimpedance amplifier with noise reduction and bandwidth comp

Details Transimpedance amplifier with noise reduction and bandwidth comp Transimpedance amplifier with noise reduction and bandwidth comp

1988-02-29

1989-08-08

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including frequency-responsive means in the signal...

330 59, 330308, H03F 3191, H03F 308

Patent

active

048556874

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.

REFERENCES:
patent: 4470020 (1984-09-01), Mohr

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