Method of pedestal and common-mode noise correction for switched

Details Method of pedestal and common-mode noise correction for switched Method of pedestal and common-mode noise correction for switched

1996-10-29

1997-09-23

Nelms, David C.

Static information storage and retrieval

Analog storage systems

365149, 365206, 365210, G11C 2700

Patent

active

056711727

ABSTRACT:
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 dement is a reference analog memory connected to a reference analog-to-digital connected to an array of digital summing circuits.

REFERENCES:
patent: 4445189 (1984-04-01), Hyatt
patent: 5388064 (1995-02-01), Khan
J. T. Walker et al, "Microstore --The Stanford Analog Memory Unit", IEEE Trans. Nucl. Sci., vol. NS-32, No. 1, pp. 616-621, Feb. 1985.
W. Sippach et al, "Development of the Front End Electronics for the ZEUS High Resolution Calorimeter," IEEE Trans. Nuc. Sci., NS-36, pp. 465-469, Feb. 1989.
B. Wadsworth, "Technology-Independent Design Considerations for Switched-Capacitor Analog Memories," M.I.T., Laboratory of Nuclear Science Electronics Facility Technical Note 89-6, Jun. 1989.
A. Konstantinidis and B. Wadsworth, "Design Considerations for Switched-Capacitor Analog Memories," 1991 Nuclear Science Symposium and Medical Imaging Con. Record, pp. 606-610, Nov. 2-9, 1991.

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