Wide dynamic range transimpedance amplifier circuit

Details Wide dynamic range transimpedance amplifier circuit Wide dynamic range transimpedance amplifier circuit

1996-05-22

2000-02-22

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including gain control means

330 86, H03G 330

Patent

active

06028482&

ABSTRACT:
A transimpedance amplifier circuit includes an inverting amplifier having an input being supplied with an input current, an output carrying an output voltage and a transconductance being adjusted as a function of the input current. A coupling member is connected between the input and the output of the inverting amplifier and has a controllable impedance. A differential amplifier has one input connected to the input and another input connected to the output of the inverting amplifier. A low-pass filter is connected downstream of the differential amplifier and has an output supplying a trigger signal for the coupling member.

REFERENCES:
patent: 4181896 (1980-01-01), Schroder
patent: 4870369 (1989-09-01), Bartenstein et al.
patent: 5640128 (1997-06-01), Wilhelm

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