• Title/Summary/Keyword: narrow band AC signals

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Mutiplexed Incremental $\Delta{\Sigma}$ Analog-Digital Converters for Data Conversion over Multi-Channel (멀티채널 데이터 변환을 위한 다중화 증분형 $\Delta{\Sigma}$ 아날로그-디지털 변환기)

  • Kim, Dae-Ik;Han, Cheol-Min;Kim, Kwan-Woong;Bae, Sung-Hwan;Kim, Yong-Kab
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.12 no.2
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    • pp.309-314
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    • 2008
  • Analog-to-digital converters(ADCs) used in instrumentation and measurements often require high absolute accuracy, including excellent linearity and negligible dc offset. Incremental(integrating) data converters(IDCs) provide a solution for such measurement applications, as they retain most of the advantages of conventional $\Delta{\Sigma}$ converters, and yet they are capable of offset-free and accurate conversion. In this paper, a design technique for implementing multiplexed incremental data converters to convert narrow bandwidth AC signals over multi-channel is discussed. It incorporates the operation principle, topology, and digital decimation filter design. The theoretical results are verified by simulation results.