Low-power asymmetric switching scheme with segmented capacitive architecture for SAR ADCs

被引：3
|
作者：
Yue, Peiyi [1 ]
Zhang, Yanbo [1 ]
Liu, Shubin [1 ]
Zhu, Zhangming [1 ]
机构：
[1] Xidian Univ, Sch Microelect, Shaanxi Key Lab Integrated Circuits & Syst, 2 Taibai Rd, Xian 710071, Peoples R China
来源：
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2020年 / 102卷 / 01期
基金：
中国国家自然科学基金;
关键词：
SAR ADC; Energy-efficient; Switching scheme; Segmented capacitive architecture; Asymmetric; ENERGY; LINEARITY;
D O I：
10.1007/s10470-019-01564-1
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, an energy-efficient asymmetric switching scheme with segmented capacitive architecture in successive approximation register (SAR) analog-to-digital converters (ADCs) is proposed for biomedical applications. Based on the segmented digital-to-analog converter architecture, the proposed method curtails the area overhead by 92% in comparison with the conventional switching method. Additionally, combining a new tri-level switching scheme, the one-side technique and the split-MSB mode, the proposed asymmetric switching scheme achieves 99.68% less switching energy over the conventional SAR ADC.
引用
收藏
页码：253 / 264
页数：12
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