The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 14, 2017

Filed:

Oct. 01, 2015
Applicant:

Avago Technologies General Ip (Singapore) Pte. Ltd, Singapore, SG;

Inventors:

Richard Lum, Singapore, SG;

Hui Fung Sim, Singapore, SG;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/02 (2006.01); H03F 1/30 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03F 1/303 (2013.01); H03F 3/45071 (2013.01); H03F 2200/153 (2013.01); H03F 2200/156 (2013.01); H03F 2203/45044 (2013.01); H03F 2203/45288 (2013.01);
Abstract

An amplification system, circuit, and method of performing offset cancellation are described. The disclosed amplification system is described as including a main amplifier circuit that receives an input signal and produces an output signal, a two-phase output sampler, and an offset correction circuit. The two-phase output sample samples the output signal of the main amplifier circuit in two different clock domains and determines a delta between the samples. The delta is used to assist the offset correction circuit in generating an offset correction feedback for the main amplifier circuit.


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