An ultra-low energy capacitive DAC array switching scheme for SAR ADC in biomedical applications

@article{Yuan2011AnUE,
  title={An ultra-low energy capacitive DAC array switching scheme for SAR ADC in biomedical applications},
  author={Chao Yuan and Yvonne Y. H. Lam},
  journal={2011 IEEE International Conference on IC Design & Technology},
  year={2011},
  pages={1-4}
}
This paper presents a novel switching scheme for an ultra-low energy charge-redistribution digital-to-analog converter (DAC) to be used in successive-approximation register (SAR) analog-to-digital converter (ADC). The proposed scheme employs unit capacitors for voltage sampling and charge redistribution. Compared with previously published capacitive DAC which uses the same unit size of capacitor array, the proposed DAC needed only 33% of the total switches. SPICE simulation results show that… CONTINUE READING

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