Amplifier with dither

Details Amplifier with dither Amplifier with dither

2011-08-16

2011-08-16

Mai, Lam T (Department: 2819)

Amplifiers

With semiconductor amplifying device

Including particular biasing arrangement

C348S308000

Reexamination Certificate

active

07999620

ABSTRACT:
An analog amplifier includes at least one signal path. Each of the at least one signal path extends between an input and an output and includes a load device coupled to the output and a transistor coupled to the input. The analog amplifier further includes a dither current source selectively coupled to one of the at least one signal path. The dither current source is capable of supplying dither current to the load device of the selected signal path directly by bypassing the transistor of the selected signal path.

REFERENCES:
patent: 5416481 (1995-05-01), Chen
patent: 5606291 (1997-02-01), Verbanets
patent: 6426714 (2002-07-01), Ruha et al.
patent: 6473019 (2002-10-01), Ruha et al.
patent: 7411534 (2008-08-01), Melanson
patent: 2010/0149360 (2010-06-01), Kapusta
PCT International Search Report and Written Opinion for PCT/US2009/66701 mailed on Jan. 26, 2010.

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