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Method of pedestal and common-mode noise correction for switched-capacitor analog memories

United States Patent

5,590,104
December 31, 1996
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A method and apparatus for correcting common-mode noise and pedestal noise in a multichannel array of switched-capacitor analog memories wherein each analog memory is connected to an associated analog-to-digital converter. The apparatus comprises a single differential element in two different embodiments. In a first embodiment, the differential element is a reference analog memory connected to a buffer. In the second embodiment, the differential element is a reference analog memory connected to a reference analog-to-digital connected to an array of digital summing circuits.
Britton; Charles L. (Alcoa, TN)
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
08/ 316,193
September 30, 1994
GOVERNMENT RIGHTS STATEMENT This invention was made with Government support under contract DE-AC05-840R21400 awarded by the U.S. Department of Energy to Martin Marietta Energy Systems, Inc., and the Government has certain rights in the invention.