Design and Implementation of a 10-bit SAR ADC

Authors: Hasmayadi Abdul Majid, Rohana Musa

Abstract:

This paper presents the development of a 38.5 kS/s 10-bit low power SAR ADC which is realized in MIMOS’s 0.35 µm CMOS process. The design uses a resistive DAC, a dynamic comparator with pre-amplifier and SAR digital logic to create 10 effective bits while consuming less than 7.8 mW with a 3.3 V power supply.

Keywords: Successive Approximation Register Analog-to- Digital Converter, SAR ADC, Resistive DAC.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1335780

References:

[1] http://www.maximintegrated.com/app-notes/index.mvp/id/1080.
[2] Y. C. Liang, Z. H. Wu and B. Li, “A New 12-bit Fully Differential SAR ADC for Wireless Implantable Neural Recording System,” in 2009 IEEE Int. Conf. Electron Devices and Solid-State Circuits, pp. 399-402, 2009.
[3] Cai Jun, Ran Feng and Xu Mei-hua, “IC Design of 2Ms/s 10-bit SAR ADC with Low Power,” Int. Symposium on High Density packaging and Microsystem Integration, 2007, pp. 1-3.
[4] T. Xingyuan, C. Jianming, Z. ZHangming and Y. Yintang, “A high performance 90 nm CMOS SAR ADC with hybrid architecture,” Journal of Semiconductors, vol. 31(1), Jan. 2010.
[5] W.-K. Chen, Linear Networks and Systems (Book style). Belmont, CA: Wadsworth, 1993, pp. 123–135.
[6] Weibin Wu, Tiansheng Hong et al., “Design and Implementation of SAR ADC,” Journal of Computers, vol. 6, No.12, Dec. 2011.
[7] P. E. Allen & D. R. Holberg, “CMOS Analog Circuit Design,” 2nd. ed. New York, Oxford University Press, 2002.