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.

Date of Patent:
Nov. 03, 2020

Filed:

Aug. 30, 2019
Applicant:

National Cheng Kung University, Tainan, TW;

Inventors:

Chung-Ming Yang, Tainan, TW;

Tai-Haur Kuo, Tainan, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/06 (2006.01); H03K 5/24 (2006.01); H03M 1/10 (2006.01);
U.S. Cl.
CPC ...
H03M 1/0607 (2013.01); H03K 5/2481 (2013.01); H03M 1/1023 (2013.01);
Abstract

An analog to digital converter includes a coarse ADC circuit composed of L offset-adjustable comparators and a fine ADC circuit composed of M offset-adjustable comparators. Each offset-adjustable comparator in the coarse ADC circuit has a constant embedded offset. Each offset-adjustable comparator in the fine ADC circuit has an adaptive embedded offset digitally determined by outputs of the coarse ADC circuit. With the constant and adaptive embedded offsets, the analog to digital converter requires no resistor ladder. Therefore, power consumption and area of the analog to digital converter is reduced, and faster conversion speed is achieved.


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