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. 24, 2022
Filed:
Nov. 16, 2020
Applicant:
Analog Devices, Inc., Wilmington, MA (US);
Inventor:
Ahmed Mohamed Abdelatty Ali, Oak Ridge, NC (US);
Assignee:
ANALOG DEVICES, INC., Wilmington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/00 (2006.01); H03M 1/10 (2006.01); H03M 1/12 (2006.01); H03M 1/06 (2006.01); H03M 1/18 (2006.01); H03G 3/30 (2006.01);
U.S. Cl.
CPC ...
H03M 1/1033 (2013.01); H03M 1/0641 (2013.01); H03M 1/1225 (2013.01); H03M 1/1245 (2013.01); H03M 1/186 (2013.01); H03G 3/30 (2013.01); H03M 1/001 (2013.01); H03M 1/06 (2013.01); H03M 1/1009 (2013.01); H03M 1/12 (2013.01); H03M 1/1215 (2013.01);
Abstract
A dither capacitor, separate from the capacitor sampling the input signal, can be used to inject the additive dither in the switched-capacitor network of the track and hold circuit. This implementation can be referred to as a split-capacitor dither injection. The dither capacitor can be connected to a summing node of the switched-capacitor network. Using a separate capacitor allows the dither to be isolated from the capacitor that is sampling the input signal and avoids kick-back errors.