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:
Mar. 06, 2018
Filed:
Dec. 05, 2016
Analog Devices Global, Hamilton, BM;
Zhao Li, North York, CA;
Hajime Shibata, Toronto, CA;
Trevor Clifford Caldwell, Toronto, CA;
Yunzhi Dong, Weehawken, NJ (US);
Jialin Zhao, Santa Clara, CA (US);
Richard E. Schreier, New Castle, CA;
Victor Kozlov, Toronto, CA;
David Nelson Alldred, Toronto, CA;
Prawal Man Shrestha, Somerville, MA (US);
ANALOG DEVICES GLOBAL, Hamilton, BM;
Abstract
An analog-to-digital converter (ADC) is a device that can include a reference shuffler and a loop filter. An ADC can achieve better performance with incremental adjustment of a pointer of the reference shuffler, changing coefficients of the loop filter, and storing calibration codes of the ADC in a non-volatile memory. By incrementally adjusting a pointer of the reference shuffler, a calibration can be performed more efficiently than with a random adjustment of the pointer. By temporarily changing the loop filter coefficients, a greater amount of activity can be introduced into the loop filter. This activity can allow the calibration to proceed more efficiently. By storing the calibration codes in a non-volatile memory, a search space for calibration codes can be reduced. Thus, a calibration can occur more quickly, and the calibration itself can be improved.