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:
May. 12, 2020

Filed:

Nov. 17, 2017
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Seung Bae Lee, Allen, TX (US);

Michael Edwin Butenhoff, Minnesota City, MN (US);

Sudhir Nagaraj, Dallas, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03F 1/26 (2006.01); H03F 1/34 (2006.01);
U.S. Cl.
CPC ...
H03F 1/26 (2013.01); H03F 1/342 (2013.01); H03F 3/4521 (2013.01); H03F 3/45 (2013.01); H03F 2203/45026 (2013.01); H03F 2203/45288 (2013.01);
Abstract

Reducing noise for an amplifier-based system circuit that comprises a first differential input pair and a second differential input pair, a first input stage circuit connected to the first differential input pair, wherein the first input stage is configured with a first transconductance value, a second input stage circuit connected to the second differential input pair, wherein the second input stage is configured with a second transconductance value that is less than the first transconductance value, a transimpedance circuit coupled to the first input stage circuit and the second input stage circuit, and a feedback loop circuit coupled to the transimpedance circuit and to the second differential input pair, wherein the feedback loop circuit is not connected to the first differential input pair.


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