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.
Patent No.:
Date of Patent:
Sep. 03, 2024
Filed:
Jul. 11, 2022
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Sumant Ramprasad, Cupertino, CA (US);
Nitz Saputra, Burlingame, CA (US);
Ashok Swaminathan, Cardiff, CA (US);
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/08 (2006.01); H03M 1/74 (2006.01); H03M 1/78 (2006.01);
U.S. Cl.
CPC ...
H03M 1/08 (2013.01); H03M 1/742 (2013.01); H03M 1/785 (2013.01);
Abstract
Methods and apparatus for common-mode current removal in a digital-to-analog converter (DAC). An example DAC circuit generally includes a plurality of current-steering cells, a resistor ladder circuit coupled to the plurality of current-steering cells and having a plurality of shunt branches, and an adjustable resistance circuit coupled between middle nodes of the plurality of shunt branches and a reference potential node for the DAC circuit.