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. 30, 2017
Filed:
Jan. 23, 2015
Applicant:
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Inventor:
Nang-Ping Tu, Hsinchu, TW;
Assignee:
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01); H03M 1/68 (2006.01); H03M 1/72 (2006.01); H03M 1/76 (2006.01); H03M 1/80 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3696 (2013.01); G09G 3/3688 (2013.01); H03M 1/687 (2013.01); H03M 1/72 (2013.01); H03M 1/804 (2013.01); G09G 2310/027 (2013.01); H03M 1/76 (2013.01); H03M 1/806 (2013.01);
Abstract
A two-stage digital-to-analog converter for outputting an analog voltage in response to a M-bit digital input code includes a one-bit serial charge redistribution digital-to-analog converter having a high reference voltage input node for receiving a high reference voltage and a low reference voltage input node for receiving a low reference voltage. A voltage selector sets the high reference voltage and low reference voltage to selected levels depending on at least a portion of the M-bit digital input code.