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Information Processing Letters
Volume 69, Issue 5, 12 March 1999, Pages 249-252
 
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doi:10.1016/S0020-0190(99)00012-5    How to Cite or Link Using DOI (Opens New Window)
Copyright © 1999 Published by Elsevier Science B.V.

A parallel approach to direct analog-to-residue conversion

D. RadhakrishnanCorresponding Author Contact Information, E-mail The Corresponding Author and A. P. Preethy

Division of Computer Engineering, School of Applied Science, Nanyang Technological University, Singapore 639798, Singapore

Received 27 January 1998; 
revised 22 October 1998. 
Communicated by D. Gries 
Available online 2 June 1999.

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Abstract

A novel design of a direct analog-to-residue converter is presented in this paper. The design makes use of two successive approximation analog-to-digital (A/D) converters, a few modulo adders and a small look-up table. One of the digital-to-analog converters is modified to generate outputs which are weighted by a constant factor, and one of the comparators is replaced by a difference amplifier. The look-up table needed is a very small percentage of the entire chip area and is shown to be only 840 bytes for a 36-bit residue number system converter.

Author Keywords: Parallel processing; RNS; Analog-to-residue converter; Modulo adder

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