IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
Energy-efficient and area-efficient switching scheme based on multi-reference for SAR ADC
Hao WangZhangming Zhu
Author information
JOURNALS FREE ACCESS

2015 Volume 12 Issue 4 Pages 20141182

Details
Abstract

A novel multi-reference capacitor switching scheme for ultra-low power successive approximation register (SAR) ADCs is proposed. By using 5 references, the proposed switching scheme only dissipates 10.6 CV2REF average energy and requires 256 unit capacitors, which are reduced by 99.2% and 87.5%, compared to the conventional structure. Besides, the common-mode voltage of the comparator input is approximately constant, which relaxes the required comparator’s performance. Behavioral simulation results demonstrate the superiority of the proposed switching scheme.

Information related to the author
© 2015 by The Institute of Electronics, Information and Communication Engineers
Previous article Next article
feedback
Top