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:
Sep. 29, 2020

Filed:

Jan. 01, 2019
Applicant:

Nxp Usa, Inc., Austin, TX (US);

Inventors:

Yizhong Zhang, Suzhou, CN;

Stefano Pietri, Austin, TX (US);

James Robert Feddeler, Lake Village, IN (US);

Michael Todd Berens, Austin, TX (US);

Assignee:

NXP USA, Inc., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/66 (2006.01); H03M 1/68 (2006.01); H03M 1/74 (2006.01); H03M 1/78 (2006.01); H03M 7/16 (2006.01);
U.S. Cl.
CPC ...
H03M 1/687 (2013.01); H03M 1/747 (2013.01); H03M 1/78 (2013.01); H03M 7/165 (2013.01);
Abstract

A digital to analog converter (DAC) that receives a binary coded signal and generates an analog output signal includes a binary-to-thermometer decoder and a resistive network. The decoder receives the binary coded signal, and decodes it into thermometer signals. The resistive network has branches that are coupled to an output terminal of the DAC in response to the thermometer signals. Each of the branches includes first and second resistors, and a switch. The first resistor is coupled between a first reference voltage and the switch, and the second resistor is coupled between a second reference voltage and the switch. The switch couples either the first resistor or the second resistor to the output terminal in response to a corresponding thermometer signal.


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