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. 15, 2018

Filed:

Jul. 28, 2017
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/66 (2006.01); H03M 1/80 (2006.01); H03M 1/68 (2006.01); H03M 1/06 (2006.01); H03M 1/74 (2006.01);
U.S. Cl.
CPC ...
H03M 1/808 (2013.01); H03M 1/0602 (2013.01); H03M 1/682 (2013.01); H03M 1/74 (2013.01);
Abstract

In some embodiments, a resistor string digital to analog converter (DAC) comprises a first plurality of resistors disposed in a first column. Each of the first plurality of resistors couples to an output of the first column via one of a first plurality of switches. The DAC also comprises a second plurality of resistors disposed in a second column. Each of the second plurality of resistors couples to an output of the second column via one of a second plurality of switches. The second plurality of resistors is configured to couple in series with the first plurality of resistors. A first row selection signal is to control a first switch of the first plurality of switches and a second switch of the second plurality of switches. The first switch corresponds to a first resistor disposed at a top of the first column, and the second switch corresponds to a second resistor disposed at a bottom of the second column.


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