An 18-bit A/D converter has been designed that uses the principle of oversampling rather than the successive-approximation technique of most converters. The design employs a 2-stage digital filter/decimator to reduce the sampling rate. Unusual digital filter structures are used to reduce the computation rate to a practical level. Extension to 19 bits and beyond is discussed.

Author: Adams, Robert W.
Affiliation: dbx, Newton, MA
AES Convention: 77 (March 1985) Paper Number: 2182
Publication Date: March 1, 1985
Subject: Digital and Analog Recording

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