This paper describes an analog front-end for oversampled analog-to-digital (A/D) converters. The device contains two fifth-order fully differential delta-sigma modulators and a voltage reference. Measured results indicate 110 dB audio-band dynamic range and 106 dB signal to distortion. An integrated stereo 18-bit A/D converter for high-end digital audio has been developed using this device.

Authors: Fujimori, Ichiro; Hamashita, Koichi; Swanson, Eric J.
Affiliations: Asahi Kasei Microsystems, Kanagawa, Japan ; Crystal Semiconductor Corporation, Austin, TX(See document for exact affiliation information.)
AES Convention: 93 (October 1992) Paper Number: 3415
Publication Date: October 1, 1992
Subject: A/D and D/A Conversion

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