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:
Aug. 09, 2016

Filed:

Feb. 06, 2015
Applicant:

Broadcom Corporation, Irvine, CA (US);

Inventors:

Anand Jitendra Vasani, Irvine, CA (US);

Ali Nazemi, Aliso Viejo, CA (US);

Jun Cao, Irvine, CA (US);

Afshin Momtaz, Laguna Hills, CA (US);

Assignee:

Broadcom Corporation, Irvine, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/66 (2006.01); H03M 1/68 (2006.01); H03M 1/00 (2006.01); H03M 1/10 (2006.01); H03M 1/74 (2006.01);
U.S. Cl.
CPC ...
H03M 1/68 (2013.01); H03M 1/002 (2013.01); H03M 1/1028 (2013.01); H03M 1/74 (2013.01);
Abstract

A low-power reconfigurable voltage-mode digital-to-analog converter (DAC) driver circuit includes a first and a second supply voltage and a number of DAC units. Each DAC unit is coupled to a respective bit of a digital input. The DAC units are configured to maintain a constant output impedance. Each DAC unit includes one or more complementary switch pairs that couple first nodes of one or more respective impedances to one of the first or the second supply voltage, based on the respective bit of the digital input. Second nodes of the one or more respective impedances are coupled to an output node.


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