A1-V32-μW 13-bit CMOS Sigma-Delta A/D Converter for Biomedical Applications

摘要：

This paper describes a low power,low voltage sigma-Delta Analog to Digital Converter which consists of a sigma-Delta modulator (SDM) and a decimation digital filter. A power efficient class AB OP-AMP,derived from inverter-like amplifier circuit,is proposed and a modified digital filter structure is employed for low frequency operation.Designed in a 0.18-μm CMOS technology,the overall SD-ADC is able to achieve an ENOB of 13.4 bit,a dynamic range of 88.6 dB and a peak SNR of 82.7 dB. The total power consumption of the ADC is 32 μW.

关键词： Sigma-delta modulator operational amplifier A/D converter digital filter

作者: Kunalan s/o Muthusamy T.Hui Teo Yong Ping Xu

作者单位: Department of Electrical and Computer Engineering,National university of Singapore Institute of Mieroelectronies,A*Star,Singapore Department of Electrical and Computer Engineering,the National University of Singapore

会议类型: 国际会议

会议名称: 2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)

会议地点: 长沙

会议语种:英文

页码: 207-210

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）