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Low-power DAC with charge redistribution sampling method for SAR ADCs

Yazdani, B ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1049/e1.2015.3381
  3. Publisher: Institution of Engineering and Technology
  4. Abstract:
  5. A sampling and switching method for a binary weighted digital-to-analogue converter (DAC) in successive approximation register (SAR) analogue-to-digital converters (ADCs) is presented. This sampling method is proposed to reduce the switching energy. Thanks to the proposed switching method, only one reference voltage (Vcm = 1/2 Vref) is required which helps to improve the precision of the DAC along with energy reduction compared with those methods that use more than one reference voltage. The switching energy and area of the DAC reduce by 97.66% and 50% compared with the conventional binary weighted DAC
  6. Keywords:
  7. Bins ; Switching ; Analogue to digital converters ; Charge redistribution ; Energy reduction ; Reference voltages ; Sampling method ; Successive approximation register ; Switching energy ; Switching methods ; Analog to digital conversion
  8. Source: Electronics Letters ; Volume 52, Issue 3 , 2016 , Pages 187-188 ; 00135194 (ISSN)
  9. URL: http://ieeexplore.ieee.org/document/7396021