Amplifier arrangement, and method for compensating for an...

Details Amplifier arrangement, and method for compensating for an... Amplifier arrangement, and method for compensating for an...

2007-12-04

2007-12-04

Choe, Henry (Department: 2817)

Amplifiers

With periodic switching input-output

C330S051000

Reexamination Certificate

active

11350224

ABSTRACT:
An amplifier arrangement and a method for compensating for an offset in an amplifier is provided. A respective switch for connecting together the inputs in a compensation operating mode and for interrupting the feedback path in this operating mode is provided in an amplifier. A control device detects an output signal and drives a controllable current source, which can be coupled to one of the two inputs of the amplifier, in such a manner that a compensation current which minimizes the offset is provided. The arrangement and method can be used, for example, in transmission arrangements.

REFERENCES:
patent: 4490682 (1984-12-01), Poulo
patent: 5764103 (1998-06-01), Burra et al.
patent: 6756842 (2004-06-01), Mehr et al.
patent: 7005916 (2006-02-01), Nakahira et al.
patent: 2 215 931 (1989-09-01), None

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