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:
Dec. 17, 2019

Filed:

Jun. 01, 2018
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Bharath Karthik Vasan, Tucson, AZ (US);

Srinivas K. Pulijala, Tucson, AZ (US);

Steven G. Brantley, Satellite Beach, FL (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/32 (2006.01); H03F 3/45 (2006.01); H03F 3/21 (2006.01);
U.S. Cl.
CPC ...
H03F 1/3205 (2013.01); H03F 1/3211 (2013.01); H03F 3/211 (2013.01); H03F 3/45076 (2013.01); H03F 3/45085 (2013.01); H03F 3/45094 (2013.01); H03F 2203/45392 (2013.01); H03F 2203/45562 (2013.01); H03F 2203/45644 (2013.01);
Abstract

A voltage-to-current converter that reduces third harmonic distortion. An amplifier includes an input stage. The input stage includes a first voltage-to-current conversion stage and a second voltage-to-current conversion stage. The first voltage-to-current conversion stage is configured to provide an input to output gain with compressive nonlinearity. The second voltage-to-current stage is cascaded with the first voltage-to-current conversion stage. An input of the second voltage-to-current stage is connected to an output of the first voltage-to-current conversion stage. The second voltage-to-current conversion stage is configured to provide an input to output gain with expansive nonlinearity.


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