Abstract
An energy-efficient switching scheme with common-mode voltage variation in 1LSB for successive approximation register analogue-to-digital converters is proposed. Based on the two-step architecture, spilt-capacitor method and reusing of the unit capacitor technique, the proposed switching scheme achieves 99.35 % less switching energy and 73.4 % less number of capacitors over the conventional architecture with common-mode voltage variation in 1LSB.
This is a preview of subscription content, log in via an institution to check access.
References
Ding, Z., & Zhu, Z. (2015). High efficiency two-step capacitor switching scheme for SAR ADC. Analog Integrated Circuits and Signal Processing, 86(1), 127–131.
Sanyal, A., & Sun, N. (2013). SAR ADC architecture with 98 % reduction in switching energy over conventional scheme. Electronics Letters, 49(4), 248–250.
Zhu, Z., Xiao, Y., & Song, X. (2013). VCM-based monotonic capacitor switching scheme for SAR ADC. Electronics Letters, 49(5), 327–329.
Zhang, Y., Edoardo, B., & Franco, M. (2016). Energy-efficient switching method for SAR ADCs with bottom plate sampling. Electronics Letters, 52(9), 690–692.
Zhu, Y., Chan, C.-H., Chio, U. F., Sin, S. W., Seng-Pan, U., Martins, R. P., et al. (2010). A 10-bit 100-MS/s reference-free SAR ADC in 90 nm CMOS. IEEE Journal of Solid-State Circuits, 45(6), 1111–1121.
Rahimi, E., & Yavari, M. (2014). Energy-efficient high-accuracy switching method for SAR ADCs. Electronics Letters, 50(7), 499–501.
Sun, L., Li, B., Wong, A. K. Y., Ng, W. T., & Pun, K. P. (2015). A charge recycling SAR ADC with a LSB-down switching scheme. IEEE Transactions on Circuits and Systems I: Regular Papers, 62(2), 356–365.
Dmitry, O., & Steffen, P. (2016). Two advanced energy-back SAR ADC architectures with 99.21 and 99.37 % reduction in switching energy. Analog Integrated Circuits and Signal Processing, 87(1), 81–91.
Weiru, G., & Fan, Y. (2015). Switch-back based on charge equalization switching technique for SAR ADC. IEICE Electronics Express, 12(6), 1–5.
Acknowledgments
This work was supported by the National Natural Science Foundation of China (61322405, 61234002, 61574103, 61574105).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Gao, J., Guo, W. & Zhu, Z. Energy-efficient common-mode voltage switching scheme for SAR ADCs. Analog Integr Circ Sig Process 89, 499–506 (2016). https://doi.org/10.1007/s10470-016-0863-5
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10470-016-0863-5