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:
Aug. 25, 2020
Filed:
Jul. 18, 2019
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Utku Seckin, Santa Clara, CA (US);
Simone Gambini, San Francisco, CA (US);
Michael D. Scott, Portland, OR (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/06 (2006.01); H03M 1/78 (2006.01);
U.S. Cl.
CPC ...
H03M 1/0612 (2013.01); H03M 1/78 (2013.01); H03M 1/785 (2013.01);
Abstract
Various embodiments of a segmented R-DAC are disclosed. In one embodiment, a segmented R-DAC includes first and second DACs arranged to receive most and least significant bits, respectively. The segmented R-DAC also includes a first capacitor coupled between an output of the first DAC and an output of the second DAC, and a second capacitor coupled between the output of the second DAC and a ground node. The capacitance of the second capacitor has a value that is a predetermined multiple of the capacitance value of the first capacitor.