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:
May. 28, 2019
Filed:
Mar. 15, 2017
University of Electronic Science and Technology of China, Chengdu, CN;
Hua Fan, Chengdu, CN;
Hadi Heidari, Glasgow, GB;
Franco Maloberti, Pavia, IT;
Dagang Li, Chengdu, CN;
Daqian Hu, Chengdu, CN;
Yuanjun Cen, Chengdu, CN;
UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA, Chengdu, CN;
Abstract
A method for improving a spurious free dynamic range and a signal-to-noise-and-distortion ratio of a capacitor-resistor combined successive approximation register analog-to-digital converter by capacitor re-configuration, the method including: 1) arranging 128 unit capacitors in a positive array and a negative array, respectively, dividing unit capacitors of symmetrical positions of the positive array and the negative array into groups to yield a total of 128 groups of capacitors; 2) acquiring 128 digital codes corresponding to 128 groups of capacitors; 3) sorting the 128 groups of capacitors from maximum to minimum according to the 128 digital codes obtained in 2), and recording the 128 groups of capacitors after sorting as C-C; and 4) selecting 64 groups of capacitors from Cto C, and reconfiguring the 64 groups of capacitors in capacitor arrays of the capacitor-resistor analog-to-digital converter.