Switching scheme with 98.4% switching energy reduction and high accuracy for SAR ADCs

被引：12

作者：

Xie, Liangbo ^{[1
]}

Su, Jian ^{[2
]}

Wang, Yao ^{[2
]}

Liu, Jiaxin ^{[2
]}

Wen, Guangjun ^{[2
]}

机构：

[1] Chongqing Univ Posts & Telecommun, Sch Commun & Informat Engn, Chongqing 400065, Peoples R China

[2] Univ Elect Sci & Technol China, Ctr RFIC & Syst Technol, Sch Commun & Informat Engn, Chengdu 611731, Sichuan, Peoples R China

来源：

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2017年 / 90卷 / 03期

关键词：

Energy-efficiency; SAR ADC; High-accuracy; Area-reduction; DAC;

D O I：

10.1007/s10470-016-0894-y

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

An energy-efficient digital-to-analogue converter (DAC) switching scheme with high-accuracy is proposed for successive approximation register (SAR) analogue-to-digital converters (ADCs). By utilizing a complementary switching method, the proposed switching scheme achieves a 98.4% switching energy reduction and a 75% area reduction compared to the conventional SAR ADC. Moreover, the accuracy of the SAR ADC is independent on the accuracy of the third reference voltage (V-cm) except the least significant bit, and the common-mode voltage of the DAC outputs keeps approximately unchanged during a conversion cycle, making the design of the SAR ADC more relaxed.

引用

页码：681 / 686

页数：6