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:
Dec. 05, 2023
Filed:
Apr. 30, 2020
Applicant:
Shanghai Analogy Semiconductor Technology Ltd., Shanghai, CN;
Inventors:
Jun Zhang, Shanghai, CN;
Zhian Zhang, Shanghai, CN;
Assignee:
SHANGHAI ANALOGY SEMICONDUCTOR TECHNOLOGY LTD., Shanghai, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/80 (2006.01); H03M 1/78 (2006.01); H03M 1/10 (2006.01); H03M 1/66 (2006.01); H03M 1/70 (2006.01);
U.S. Cl.
CPC ...
H03M 1/808 (2013.01); H03M 1/1057 (2013.01); H03M 1/66 (2013.01); H03M 1/70 (2013.01); H03M 1/785 (2013.01);
Abstract
A digital-to-analog conversion circuit, comprising: an R−2R resistive network () configured to be connected between an output end and a ground end; an output voltage selection unit () configured to be connected between the output end of the R−2R resistive network () and a voltage output terminal; an output voltage trimming unit (), wherein the output voltage trimming unit () is provided between a 2R resistor on at least one branch of the R−2R resistive network () and the ground end.