Year: 2007
Type: article
Abstract: The ΔΣ modulation A‐D converter is widely used in practice as a high‐resolution A‐D converter suitable for LSI implementation. However, in general, if the order of the loop filter in the ΔΣ modulation A‐D converter exceeds three, stability of the circuit is no longer guaranteed. In this paper, the relationship of the loop filter coefficients in the A‐D converter is studied. Based on the results, a design method is proposed for a higher‐order ΔΣ modulation A‐D converter such that stability is assured while maximizing the signal‐to‐noise (SN) ratio. Further, the results of a PSPICE simulation and experimental results obtained using individual components confirm that the present design method is sufficiently practical. © 2007 Wiley Periodicals, Inc. Electron Comm Jpn Pt 3, 90(6): 10– 16, 2007; Published online in Wiley InterScience ( www.interscience. wiley.com ). DOI 10.1002/ecjc.20269
DOI: 10.1002/ecjc.20269
Authors: Etsuro Hayahara, Ken'Ichi Aoki, Satoshi Hirano
Institutions: Chubu University, Nagoya Institute of Technology
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2000942859