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US Patent 8659461 Analog to digital converter circuit

Patent 8659461 was granted and assigned to University of Macau on February, 2014 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors

Is a

Patent

Patent attributes

Patent Applicant

University of Macau

Current Assignee

University of Macau

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

86594610

Patent Inventor Names

Rui Paulo da Silva Martins0

Yan Zhu0

Seng-Pan U0

Chi-Hang Chan0

Franco Maloberti0

Sai-Weng Sin0

Date of Patent

February 25, 2014

Patent Application Number

136753870

Date Filed

November 13, 2012

Patent Primary Examiner

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Joseph Lauture

Patent abstract

The present invention provides a pipelined-successive approximation register (SAR) analog-to-digital converter (ADC) circuit with decoupled flip-around MDAC, capacitive attenuation solution and self-embedded offset cancellation. The flip-around MDAC architecture is built for low inter-stage gain implementation. A capacitive attenuation solution is provided for minimizing the power dissipation and optimizing conversion speed. The design reuses SAR ADC to perform offset cancellation, which significantly saves calibration area, power and time.