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:
Aug. 25, 2020
Filed:
Dec. 15, 2018
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Bharath Karthik Vasan, Tucson, AZ (US);
Vadim Valerievich Ivanov, Tucson, AZ (US);
Piyush Kaslikar, Tucson, AZ (US);
Srinivas K. Pulijala, Tucson, AZ (US);
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/02 (2006.01); H03F 3/00 (2006.01); H03F 3/45 (2006.01); H03F 1/30 (2006.01);
U.S. Cl.
CPC ...
H03F 3/005 (2013.01); H03F 3/45076 (2013.01); H03F 1/303 (2013.01); H03F 3/45475 (2013.01);
Abstract
A chopper amplifier circuit includes a first amplifier path with chopper circuitry, a switched-capacitor filter, and multiple gain stages. The chopper amplifier circuit also includes a second amplifier path with a feed-forward gain stage. A chopping frequency of the chopper circuitry is greater than a threshold frequency at which the second amplifier path is used instead of the first amplifier path.