Amplifier and offset regulating circuit

Details Amplifier and offset regulating circuit Amplifier and offset regulating circuit

2011-04-12

2011-04-12

Nguyen, Khanh V (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S257000

Reexamination Certificate

active

07924094

ABSTRACT:
An amplifier includes a signal amplification part that outputs an output signal obtained by amplifying an input signal and a common mode voltage VCMof the output signal, and a common mode feedback part that outputs a signal according to a difference between the common mode voltage VCMand a reference potential Vrefas a regulation signal SREG. The regulation signal SREGfrom the common mode feedback part is fed back to a current source of the signal amplification part and a current source of the common mode feedback part.

REFERENCES:
patent: 5856757 (1999-01-01), Eschauzier
patent: 6774722 (2004-08-01), Hogervorst
patent: 2007-134940 (2007-05-01), None

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