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:
Sep. 27, 2016

Filed:

Aug. 05, 2015
Applicant:

Analog Devices Global, Hamilton, BM;

Inventors:

Avinash Gutta, Bangalore, IN;

Michael Coln, Lexington, MA (US);

Assignee:

Analog Devices Global, Hamilton, BM;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/66 (2006.01); H03M 1/00 (2006.01); H03M 1/74 (2006.01); H03M 1/36 (2006.01); G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
H03M 1/002 (2013.01); H03M 1/664 (2013.01); G09G 3/3688 (2013.01); H03M 1/00 (2013.01); H03M 1/365 (2013.01); H03M 1/747 (2013.01);
Abstract

A method and a digital-to-analog converter (DAC) circuit involve forming an analog signal using charge sharing operations. The DAC circuit includes a plurality of digital components with associated parasitic capacitances. The digital components are activated based on a digital input code, such that charge is shared among the parasitic capacitances to form a first analog signal proportional to the digital input code. The digital components can also be activated based on a complementary code to form a second analog signal. The first analog signal and the second analog signal can be used to form, as a final output of the DAC circuit, an analog signal that is linearly proportional to the digital input code.


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