Variable-gain constant-bandwidth transimpedance amplifier

Amplifiers – Signal feedback – In cascade amplifiers

Reexamination Certificate

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Details

C330S069000

Reexamination Certificate

active

07023271

ABSTRACT:
A transimpedance amplifier (TIA) circuit according to the present invention includes a first opamp having an input and an output. A second opamp has an input that communicates with the first opamp and an output. A first feedback path communicates with the input and the output of the first opamp and includes a first resistance. A second feedback path communicates with the input and the output of the second opamp and includes a second resistance. A third feedback path communicates with the input of the first opamp and the output of the second opamp.

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