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:
Nov. 03, 2020
Filed:
Jul. 08, 2019
Applicant:
Realtek Semiconductor Corp., Hsinchu, TW;
Inventor:
Chi-Ying Lee, Hsinchu, TW;
Assignee:
REALTEK SEMICONDUCTOR CORP., Hsinchu, TW;
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/10 (2006.01); H03G 3/20 (2006.01); H03M 1/36 (2006.01); H03M 1/66 (2006.01); H03M 1/12 (2006.01); H03M 1/00 (2006.01); H03M 1/06 (2006.01);
U.S. Cl.
CPC ...
H03M 1/1038 (2013.01); H03G 3/20 (2013.01); H03M 1/1014 (2013.01); H03M 1/121 (2013.01); H03M 1/361 (2013.01); H03M 1/66 (2013.01); H03M 1/00 (2013.01); H03M 1/001 (2013.01); H03M 1/06 (2013.01); H03M 1/1009 (2013.01); H03M 1/12 (2013.01);
Abstract
A gain calibration device for an ADC residue amplifier includes a DAC and a flash ADC. The DAC is configured to convert the digital signal to an analog signal, and the DAC includes a calibration module used in the gain calibration of the ADC residual amplifier. The flash ADC is configured to generate a digital signal, the flash ADC includes a plurality of comparators, the total number of the plurality of comparators is equal to the number of output bits of the flash ADC, and the comparators are configured to be unevenly distributed in an input range.