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AD and DA conversion
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences, Electronics.ORCID iD: 0000-0001-5429-7223
2015 (English)In: Modern Measurements: Fundamentals and Applications / [ed] Ferrero, A., Petri, D., Carbone, P. and Catelani, M., Hoboken: John Wiley & Sons, 2015, p. 125-148Chapter in book (Refereed)
Abstract [en]

This chapter describes the conversion process and its limitations and discusses methods to reduce the impact of these limitations in various applications. The process of converting analog signals into digital signals can be divided into two parts. First, the signal will be measured at discrete time instants and then quantized into fixed amplitude levels. The key parameters to consider when selecting an analog-to-digital converter (ADC) or digital-to-analog converter (DAC) are the resolution of the quantizer in number of bits and the sampling rate of the sampler. The chapter discusses these two functions with a basic example. It introduces some commonly used sampling techniques for improving the performance of an existing ADC, such as oversampling, sigma-delta conversion, dithering, time-interleaved sampling, undersampling, harmonic sampling, time-equivalent sampling and post-correction methods. The theory behind signal reconstruction is discussed with respect to the sampling theorem.

Place, publisher, year, edition, pages
Hoboken: John Wiley & Sons, 2015. p. 125-148
Keywords [en]
analog-to-digital converter, digital-to-analog converter, harmonic sampling, oversampling, sampling theorem, sigma-delta conversion, signal reconstruction, time-equivalent sampling, time-interleaved sampling, undersampling
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:hig:diva-21461DOI: 10.1002/9781119021315.ch4ISI: 000385864400005Scopus ID: 2-s2.0-85017565705ISBN: 978-1-118-17131-8 (print)ISBN: 978-1-119-02131-5 (print)ISBN: 978-1-119-02132-2 (electronic)OAI: oai:DiVA.org:hig-21461DiVA, id: diva2:925690
Note

Book DOI: 10.1002/9781119021315

Available from: 2016-05-03 Created: 2016-05-03 Last updated: 2018-06-27Bibliographically approved

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Björsell, Niclas

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf