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.

Date of Patent:
Jan. 28, 2020

Filed:

Jun. 07, 2017
Applicant:

Xilinx, Inc., San Jose, CA (US);

Inventors:

Umanath R. Kamath, Citywest, IE;

Padraig Kelly, Crosshaven, IE;

John K. Jennings, Glenageary, IE;

Assignee:

XILINX, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01K 7/00 (2006.01); G01K 7/01 (2006.01); H03K 19/003 (2006.01); H03K 19/0175 (2006.01); G01K 1/02 (2006.01);
U.S. Cl.
CPC ...
G01K 7/01 (2013.01); G01K 1/026 (2013.01); G01K 7/015 (2013.01); H03K 19/00307 (2013.01); H03K 19/017581 (2013.01);
Abstract

An example dynamic element matching (DEM) circuit includes: a plurality of bipolar junction transistors (BJTs), each of the plurality of BJTs having a base terminal and a collector terminal coupled to electrical ground; a plurality of pairs of force switches, each pair of force switches coupled to an emitter of a respective one of the plurality of BJTs; a plurality of pairs of sense switches, where each pair of sense switches is coupled to the emitter of a respective one of the plurality of BJTs, a first switch in each pair of sense switches is coupled to a first node, and a second switch in each pair of sense switches is coupled to a second node; a first current source coupled to a first switch in each pair of force switches; and a second current source coupled to a second switch in each pair of force switches.


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