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:
Jul. 02, 2019
Filed:
Jan. 12, 2018
Applicant:
Dialog Semiconductor (Uk) Limited, London, GB;
Inventors:
Hirohisa Tanabe, Yokohama, JP;
Seiichi Ozawa, Wakoh, JP;
Assignee:
Dialog Semiconductor (UK) Limited, London, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/10 (2006.01); H03M 1/76 (2006.01);
U.S. Cl.
CPC ...
H03M 1/1071 (2013.01); H03M 1/765 (2013.01);
Abstract
A thermometer-coded Digital to Analog Converter (DAC) is described, whose output is changed with fast speed, and reduced output overshoot or undershoot. The thermometer-coded DAC has selection switches and an up/down counter, with DAC codes separated into higher and lower bits. The lower bits increase up to a maximum code, then decrease. The configuration of resistors in the DAC reduces output spike, especially at the DAC code changing point.