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Calibration of sigma-delta analog-to-digital converters based on histogram test methods
ECE Department, Isfahan University of Technology, Isfahan, Iran.
ECE Department, Isfahan University of Technology, Isfahan, Iran.
Linköping University, Department of Electrical Engineering, Electronics System. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Electronics System. Linköping University, The Institute of Technology.
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2010 (English)In: NORCHIP, 2010, IEEE , 2010, 1-4 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper we present a calibration technique for sigma-delta analog-to-digital converters (ΣΔADC) in which highspeed, low-resolution flash subADCs are used. The calibration technique as such is mainly targeting calibration of the flash subADC, but we also study how the correction depends on where in the ΣΔ modulator the calibration signals are applied. It is shown that the calibration technique can cope with errors that occur in the feedback digital-to-analog converter (DAC) and the input accumulator. Behavioral-level simulation results show an improvement of in effective number of bits (ENOB) from 6.6 to 11.3. Fairly large offset and gain errors have been introduced which illustrates a robust calibration technique.

Place, publisher, year, edition, pages
IEEE , 2010. 1-4 p.
Keyword [en]
#x03A3; #x0394; analog-to-digital converters;calibration technique;feedback digital-to-analog converter;histogram test methods;low-resolution flash subADCs;sigma-delta analog-to-digital converters;calibration;feedback;sigma-delta modulation;
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-70627DOI: 10.1109/NORCHIP.2010.5669459ISBN: 978-1-4244-8972-5 (print)OAI: oai:DiVA.org:liu-70627DiVA: diva2:440975
Conference
NorChip 2010, 28th Norchip Conference, 15 - 16 November 2010, Tampere, Finland
Available from: 2011-09-14 Created: 2011-09-14 Last updated: 2011-10-13

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Wikner, JacobAndersson, NiklasVesterbacka, Mark

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf