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A study on power consumption of modified noise-shaper architectures for Sigma-Delta DACs
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.
Linköping University, Department of Electrical Engineering, Electronics System. Linköping University, The Institute of Technology.
2011 (English)In: Circuit Theory and Design (ECCTD), 2011, IEEE , 2011, 274-277 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, modified, hybrid architectures for digital, oversampled sigma-delta digital-to-analog converters (ΣΔDACs) are explored in terms of signal-to-noise ratio (SNR) and power consumption. Two different architectures are investigated, both have variable configurations of the input and output word-length (i.e., the physical resolution of the DAC). A modified architecture, termed in this work as a composite architecture (CA), shows about 9 dB increase in SNR while maintaining a power-consumption at the same level as that of a so-called hybrid architecture (HA). The power estimation is done for modulators on the RTL level using a standard cell library in a 65-nm technology. The modulators are operated at a sampling frequency of 2 GHz.

Place, publisher, year, edition, pages
IEEE , 2011. 274-277 p.
Keyword [en]
Composite architecture, DAC Complexity, Hybrid architecture, Modulator's Complexity, Noise Shaper, Sigma-Delta Modulator
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-86542DOI: 10.1109/ECCTD.2011.6043335ISBN: 978-1-4577-0617-2 (print)ISBN: e-978-1-4577-0616-5 OAI: oai:DiVA.org:liu-86542DiVA: diva2:578668
Conference
20th European Conference on Circuit Theory and Design (ECCTD 2011), 29-31 August 2011, Linköping, Sweden
Available from: 2012-12-18 Created: 2012-12-18 Last updated: 2014-04-03

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Afzal, NadeemSadeghifar, RezaWikner, Jacob

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CiteExportLink to record
Permanent link

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Cite
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