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:
Jul. 21, 2020
Filed:
Nov. 06, 2014
Analog Devices, Inc., Norwood, MA (US);
Jie Zhou, Saratoga, CA (US);
Arthur J. Kalb, Santa Clara, CA (US);
Analog Devices, Inc., Norwood, MA (US);
Abstract
Apparatus and methods for reducing charge injection mismatch are provided herein. In certain implementations, an electronic circuit includes one or more switch banks. Each switch bank can include a selection circuit and a plurality of switches that can be controlled using one or more clock signals. The selection circuit can select a first portion of the switches for operation in a first switch group and a second portion of the switches for operation in a second switch group. During a calibration, the electronic circuit's charge injection mismatch can be directly or indirectly observed for different switch configurations of the switch banks. The electronic circuit can be programmed to operate with the selected switch configurations of the switch banks to provide the electronic circuit with small charge injection mismatch.