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:
Feb. 08, 2022
Filed:
Oct. 15, 2018
Applicant:
Ipgreat Incorporated, Grand Cayman, KY;
Inventor:
Yuan-Ju Chao, Cupertino, CA (US);
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/38 (2006.01); H03M 1/46 (2006.01);
U.S. Cl.
CPC ...
H03M 1/466 (2013.01);
Abstract
A method of enhancing SAR ADC conversion rate by employing a new value shifted capacitor DAC. The value shifted capacitor DAC decreases largest capacitor to improve the reference voltage settling. The reduction of capacitor is added back onto the smaller capacitor DAC to maintain the same total capacitor value. The binary search outputs are re-combined and processed to produce final binary ADC outputs. The overhead of using value shifted capacitor DAC is the extra latency needed for re-combined logic.