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Research on Sigma-Delta Analog-to-Digital Converter for Precision Measurement

The main purpose of this thesis is to research High-Order Sigma-Delta Analog-to-Digital converter for precision measurement, a PI compensator and a third-order Sigma-Delta modulator has been proposed based on a second-order Sigma-Delta modulator. In accordance with the analysis result of frequency domain and time domain of system, we use third-order model because of better response with auxiliary software to simulate and implement the system, then measure modulator output variance for input variation. This converter circuit demonstrates that it can achieve the requirements of precision and linearity which the measure instrument demands.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0726107-235552
Date26 July 2007
CreatorsWang, Yuan-Hung
ContributorsJerome Chang, Geeng-Kwei Chang, Yung-Chun Wu, I-Chih Kao, Tzuen-Lih Chern
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0726107-235552
Rightsnot_available, Copyright information available at source archive

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