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:
Nov. 06, 2018

Filed:

Aug. 04, 2017
Applicant:

Silicon Integrated Systems Corp., Hsinchu, TW;

Inventors:

Ssu-Che Yang, Hsinchu, TW;

Wen-Chi Lin, Hsinchu, TW;

Keng-Nan Chen, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 1/00 (2006.01); H03F 1/02 (2006.01); H03F 1/26 (2006.01); H03F 3/45 (2006.01); H03G 3/00 (2006.01);
U.S. Cl.
CPC ...
H03G 1/0088 (2013.01); H03F 1/0233 (2013.01); H03F 1/26 (2013.01); H03F 3/45215 (2013.01); H03F 3/45273 (2013.01); H03G 1/0029 (2013.01); H03G 3/001 (2013.01); H03F 3/45 (2013.01); H03F 2203/45026 (2013.01);
Abstract

A programmable gain amplifier includes an active load module, a first differential pair, a second differential pair and a power source module. The first and second differential pairs are electrically connected to the active load module. The power source module is electrically connected to the first current source end of the first differential pair and the second current source end of the second differential pair. The power source module supplies a first current to the first differential pair through the first current source end. The power source module supplies a second current to the second differential pair through the second current source end. The power source module adjusts the potential of the first current, the potential of the second current, or both.


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