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. 13, 2025

Filed:

Jun. 20, 2024
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventor:

Brian Elies, Dallas, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/06 (2006.01); H03M 1/66 (2006.01); H03M 1/80 (2006.01); H03M 3/00 (2006.01);
U.S. Cl.
CPC ...
H03M 1/0612 (2013.01); H03M 1/06 (2013.01); H03M 1/66 (2013.01); H03M 1/80 (2013.01); H03M 3/00 (2013.01);
Abstract

An example apparatus includes: resistor ladder circuitry including a plurality of intermediate voltage nodes; a first plurality of switches having inputs coupled to a plurality of intermediate voltage nodes and having outputs; first level decoder circuitry configured to: receive a set of input bits; and open or close ones of the first plurality of switches based on a first subset of the input bits; a second plurality of switches having inputs coupled to the outputs of the first plurality of switches and having outputs coupled to a common node; and second level decoder circuitry configured to: receive the set of input bits; and open or close ones of the second plurality of switches based on a second subset of the input bits, the first and the second subsets sharing one of the input bits, wherein the output voltage is to be coupled to the common node.


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