A Sigma-Delta Modulator with a Novel Chopper Correlated Double Sampled Integrator

摘要：

This paper presents a fully differential second-order Sigma-Delta modulator (SDM) based on a chopper correlated double sampled integrator. The Correlated double sampling technique (CDS) and chopper stabilization technique (CHS) are used in the first integrator to eliminate the low frequency noise of the amplifier. The whole circuit implemented in a 0.35 urn CMOS technology with 3.3V supply voltage. The simulation results show that the proposed SDM has better performance on eliminating the contamination of the low frequency noise of the amplifier than traditional CDS modulator.

作者: Luo Wang Huihui Ji Quan Sun

作者单位: School ofElectronic and Information Engineering, Beihang University, Beijing 100191, China Institute School ofElectronic and Information Engineering, Beihang University, Beijing 100191, China Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China

会议类型: 国际会议

会议名称: 2011 IEEE 9th International Conference on ASIC(2011年第九届IEEE国际专用集成电路大会)

会议地点: 厦门

会议语种:英文

页码: 485-488

在线出版日期: 2011-10-25（万方平台首次上网日期，不代表论文的发表时间）