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. 24, 2019
Filed:
Jul. 11, 2018
Applicant:
Analog Devices Global Unlimited Company, Hamilton, BM;
Inventor:
Sandeep Monangi, Srikakulam, IN;
Assignee:
Analog Devices Global Unlimited Company, Hamilton, BM;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/12 (2006.01); H03M 1/46 (2006.01); H03M 1/06 (2006.01); H03M 1/68 (2006.01); H03M 1/00 (2006.01); H03M 1/80 (2006.01); H03M 1/10 (2006.01); G11C 27/02 (2006.01);
U.S. Cl.
CPC ...
H03M 1/466 (2013.01); H03M 1/0612 (2013.01); H03M 1/1245 (2013.01); H03M 1/462 (2013.01); H03M 1/68 (2013.01); G11C 27/02 (2013.01); H03M 1/002 (2013.01); H03M 1/06 (2013.01); H03M 1/10 (2013.01); H03M 1/802 (2013.01); H03M 1/804 (2013.01);
Abstract
A differential digital-to-analog (DAC) circuit that can include a reservoir capacitor and various switches to couple the bottom plates of the input capacitors, e.g., bit-trial capacitors, to reference voltages, e.g., REF+ or REF−. In this manner, the reservoir capacitor can be used to provide any differential charge to the input capacitors, e.g., bit-trial capacitors, and the reference voltages, e.g., REF+ and REF−, can be used to provide any common mode charge to the input capacitors.