Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Mamoru Tamba0
Date of Patent
January 9, 2007
Patent Application Number
10279493
Date Filed
October 24, 2002
Patent Primary Examiner
Patent abstract
A method and low cost apparatus to accurately determine the gain, offset, and/or skew calibration values of each A/D converter in a few steps for an interleaving A/D converter. The calibration method includes: applying sine waves to the input as a calibration signal during calibration, A/D converting of the sine wave by a plurality of A/D conversion means in a predetermined order and storing the converted data in a data storage memory, and determining the gain, offset, and/or skew calibration values by using sine curve fitting on a sequence of converted data for each of the plurality of A/D conversion means.
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