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.
Patent No.:
Date of Patent:
Feb. 05, 2019
Filed:
Feb. 16, 2017
Applicant:
Mediatek Inc., Hsin-Chu, TW;
Inventors:
Assignee:
MediaTek Inc., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/00 (2006.01); H03F 3/45 (2006.01); H03G 1/00 (2006.01); H03G 3/00 (2006.01);
U.S. Cl.
CPC ...
H03F 3/005 (2013.01); H03F 3/45475 (2013.01); H03G 1/0094 (2013.01); H03G 3/001 (2013.01); H03F 2200/504 (2013.01); H03F 2203/45512 (2013.01); H03F 2203/45514 (2013.01); H03F 2203/45526 (2013.01); H03F 2203/45528 (2013.01); H03F 2203/45594 (2013.01);
Abstract
A programmable amplifier circuit includes an amplifier, an input capacitor coupled to an input of the amplifier, a feedback capacitor coupled to the input of the amplifier and an output of the amplifier, and a switched-capacitor resistor circuit. The switched-capacitor resistor circuit is coupled between the input of the amplifier and the output of the amplifier, and configured for simulating a feedback resistor element to provide a resistance for a feedback path of the amplifier by using at least one capacitor placed between the input of the amplifier and the output of the amplifier to avoid leakage current(s) flowing back to an input of the amplifier.