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

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

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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.

Inventors:

Britton, Charles L. ^[1]

(Alcoa, TN)

Issue Date:: 1996-01-01

OSTI Identifier:: 870764

Assignee:: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL

Patent Number(s):: US 5590104

Contract Number:: AC05-84OR21400

Research Org:: LOCKHEED MARTIN ENRGY SYST INC

Country of Publication:: United States

Language:: English

Subject:: method; pedestal; common-mode; noise; correction; switched-capacitor; analog; memories; apparatus; correcting; multichannel; array; memory; connected; associated; analog-to-digital; converter; comprises; single; differential; element; embodiments; embodiment; reference; buffer; digital; summing; circuits; analog memory; analog-to-digital converter; apparatus comprises; apparatus comprise; switched-capacitor analog; common-mode noise; analog memories; multichannel array; pedestal noise; noise correction; digital converter; correcting common-mode; /365/

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