Transimpedance amplifier-input stage for an optical receiver

Details Transimpedance amplifier-input stage for an optical receiver Transimpedance amplifier-input stage for an optical receiver

1991-07-19

1993-03-30

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

330 59, H01J 4014, H03F 1700

Patent

active

051986582

ABSTRACT:
An input stage for an optical receiver with a photodiode (T), which has its output connected, via a capacitor (C.sub.1), to the input of a transimpedance amplifier (f), includes a unit having a resistance depending on the voltage, which is connected between the output of the photodiode and the earth potential of the amplifier. The photodiode is a PIN diode, and said unit with a voltage dependent resistance includes a feed-back amplifier (Df) with a frequency response adapted to that of the transimpedance amplifier.

REFERENCES:
patent: 5008524 (1991-04-01), Reutter et al.
patent: 5023951 (1991-06-01), Kahn

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