A charge sharing–based switching scheme for SAR ADCs

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  • Meysam Akbari, Shahid Beheshti University
  • ,
  • Omid Hashemipour, Shahid Beheshti University
  • ,
  • Masoud Nazari, University of Akron
  • ,
  • Farshad Moradi

This paper presents an energy-efficient switching scheme for successive approximation register (SAR) analogue-to-digital converter (ADC). The proposed scheme employs charge recycling method to keep the capacitor arrays free of transitional energy between bit generations except reset phase. In comparison with the conventional switching scheme, the proposed one achieves 100% transitional energy saving without considering reset phase. In addition, configuration of a 10-bit SAR ADC shows that the proposed switching scheme reduces the capacitor area by 25% compared with the conventional switching scheme.

TidsskriftInternational Journal of Circuit Theory and Applications
Sider (fra-til)1188-1198
Antal sider11
StatusUdgivet - jul. 2019

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