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:
Feb. 26, 2019
Filed:
Nov. 08, 2017
Xilinx, Inc., San Jose, CA (US);
Diarmuid Collins, Dunshaughlin, IE;
Bruno Miguel Vaz, Sao Domingos de Rana, PT;
XILINX, INC., San Jose, CA (US);
Abstract
An example capacitive digital-to-analog converter (CDAC) includes: a first plurality of capacitors consisting of M−1 capacitors, where M is an integer greater than one, the first plurality of capacitors including top plates coupled to a first node; a second plurality of capacitors consisting of M−1 capacitors, the second plurality of capacitors including top plates coupled to a second node; a first plurality of switches consisting of M−1 switches coupled to bottom plates of the respective M−1 capacitors of the first plurality of capacitors, the first plurality of switches further coupled to a third node providing a supply voltage and a fourth node providing a ground voltage; a second plurality of switches consisting of M−1 switches coupled to bottom plates of the respective M−1 capacitors of the second plurality of capacitors, the second plurality of switches coupled to the third node and the fourth node; and a control circuit including an input consisting of M bits for receiving an M bit code and an output consisting of 2*(M−1) bits for providing a first M−1 bit code to respectively control the M−1 switches of the first plurality of switches and a second M−1 bit code to respectively control the M−1 switches of the second plurality of switches.