Tri-level capacitor-splitting switching scheme with high energy-efficiency for SAR ADCs

IEICE Electronics Express

Wenming Xie¹  Chuanyang Liu²  Qidong Zhang³  Hao Wang¹ 

[1] School of Information Science and Engineering, Fujian University of Technology;College of Electronic and Information Engineering, Suzhou University of Sciences and Technology;School of Microelectronics, Xidian University

关键词: switching scheme;    one-side double-level;    capacitor-splitting;    energy-efficient;   

DOI  :  10.1587/elex.13.20160645

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(10)An energy-efficient tri-level capacitor-splitting switching algorithm for successive approximation register (SAR) analog-to-digital converters (ADCs) is proposed. The proposed switching scheme is a combination of the zero-power-consumption switching algorithm and the one-side double-level switching technique. By zero-power-consumption switching algorithm, there is no switching power dissipation during the first three bit cycles. Furthermore, only one-side capacitors are switched between two reference voltages (ground and VCM) during the remaining bit conversions, which is more energy-saving than the monotonic switching method. The proposed switching method reduces the switching energy by 50.59% compared to the Sanyal and Sun proposed one.

【 授权许可】

Unknown