US Patent 7532146 Multi-bit pipeline analog-to-digital converter having merged capacitor switching structure

Patent 7532146 was granted and assigned to Electronics and Telecommunications Research Institute on May, 2009 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Electronics and Telecommunications Research Institute

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

75321460

Patent Inventor Names

Jong Dae Kim0

Young Deuk Jeon0

Seung Chul Lee0

Chong Ki Kwon0

Kwi Dong Kim0

Date of Patent

May 12, 2009

Patent Application Number

119034760

Date Filed

September 20, 2007

Patent Primary Examiner

‌

Brian Young

Patent abstract

Provided is a multi-bit pipeline analog-to-digital converter (ADC) having a merged capacitor switching structure. In a multiplying digital-to-analog converter (MDAC) used in the multi-bit pipeline ADC, switches are connected between the bottom plates of respective differential capacitors, thereby constantly maintaining a uniform input common mode voltage regardless of an input digital code. Thus, it is possible to improve the operating speed and performance of the MDAC.

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