NDLI: Selectable starting bit SAR ADC

Content Provider	IEEE Xplore Digital Library
Author	Leung, J. Waters, A. Un-Ku Moon
Copyright Year	2015
Description	Author affiliation: Sch. of Electr. Eng. & Comput. Sci., Oregon State Univ., Corvallis, OR, USA (Leung, J.; Waters, A.; Un-Ku Moon)
Abstract	Prior work used least-significant bit first quantization (LSBFQ) to conserve switching energy and comparator bitcycles, but is limited to low activity signals. Furthermore, LSBFQ results in a large bitcycle range in the quantizer. A novel selectable starting bit quantizer (SSBQ) is proposed which starts quantization with neither the MSB nor the LSB, but an intermediate bit chosen for target applications. It is shown that the proposed algorithm reduces bitcycle range in the quantizer compared to LSBFQ, and provides design flexibility for various activity signals. Furthermore, the proposed solution encompasses LSBFQ since it is a specific case of the proposed architecture. For target applications, the proposed solution will save bitcycles in an A/D conversion, as well as switching energy, over the LSBFQ and the merged capacitor switching (MCS) SAR, the most energy-efficient traditional MSB-first SAR.
Starting Page	1654
Ending Page	1657
File Size	757999
Page Count	4
File Format	PDF
ISBN	9781479983919
DOI	10.1109/ISCAS.2015.7168968
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-05-24
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Amplitude modulation Switches Capacitors Algorithm design and analysis Approximation methods Moon Quantization (signal)
Content Type	Text
Resource Type	Article

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