Operational amplifier circuit with improved gain of feedback loo

Details Operational amplifier circuit with improved gain of feedback loo Operational amplifier circuit with improved gain of feedback loo

1992-02-21

1992-11-10

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330277, H03F 345

Patent

active

051627353

ABSTRACT:
An operational amplifier circuit comprises an input amplification circuit, a driving circuit coupled with the input amplification circuit, and an averaging circuit for providing a feedback loop, and increases the magnitude of an input differential voltage signal so as to produce an output differential voltage signal, wherein an average voltage of output voltage levels of the output differential voltage signal is supplied to the input amplification circuit for increasing the gain of the averaging circuit.

REFERENCES:
patent: 4562408 (1985-12-01), Nagai et al.
patent: 5070306 (1991-12-01), Okanoto

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