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Convention Paper

Current-Steering Transimpedance Amplifiers for High-Resolution Digital-to-Analogue Converters

Authors: Hawksford, Malcolm J.

AES Convention 109 · Paper 5192 · September 2000

Abstract

A family of current-steering transimpedance amplifier circuits is presented for use in high-resolution digital-to-analog converters. The problems of achieving accurate current-to-voltage conversion are discussed, with a specific emphasis on digital audio applications. Comparisons are made with conventional virtual-earth feedback amplifiers, and the inherent distortion mechanisms relating to dynamic open-loop gain are discussed. Motivation for this work follows the introduction of DVD-Audio carrying linear PCM with a resolution of 24 bit at a sampling rate of 192 kHz.

Details

Published in
AES Convention 109
AES Convention
109
Paper number
5192
Publication date
September 6, 2000
Session subject
Analog Signal Processing
Affiliation
Centre for Audio Research and Engineering, University of Essex, Colchester, Essex, UK (See document for exact affiliation information.)
Type
Convention Paper