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:
Apr. 10, 2018
Filed:
Aug. 31, 2017
Applicant:
Analog Devices Global, Hamilton, BM;
Inventors:
Hongxing Li, Andover, MA (US);
Roberto Sergio Matteo Maurino, Turin, IT;
Assignee:
Analog Devices Global, Hamilton, BM;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/66 (2006.01); H03M 1/20 (2006.01); H03M 1/06 (2006.01); H03M 1/46 (2006.01);
U.S. Cl.
CPC ...
H03M 1/201 (2013.01); H03M 1/0639 (2013.01); H03M 1/462 (2013.01); H03M 1/66 (2013.01);
Abstract
A higher accuracy ADC circuit (e.g., in which the number of bits of the ADC circuit is twelve or greater) may need calibration multiple times during its working life to avoid bit weight errors. Described are techniques to address DAC element ratio errors between DAC element clusters in a DAC circuit in order to maintain the linear performance of analog-to-digital converter (ADC) circuits and digital-to-analog converter (DAC) circuits.