Delta-Sigma Analog-to-digital modulator with low power and low voltage for audio applications

摘要：

A 16-bits ∑Δ analog-to-digital modulator is realized in standard CMOS technology in this paper. To realize low power and low voltage, a new type of pseudo-two-stage Class-AB OTA is used in switcbed-capacitor integrators. Full compensated depletion mode capacitors made the whole circuit be realized in standard CMOS technology. In standard SMIC 0.18μm 1P6M CMOS technology, test results show that with 1.2V supply voltage and 6MHz sample clock, this circuit can receive much better figure of merit(FOM) compared with other reported low power low voltage ∑Δ analogto-digital modulators.

关键词： low power low voltage pseudo-two-stage standard CMOS technology FOM

作者: Yin Shujuan Li Xiangyu

作者单位: The college of science, Beijing Information Science and Technology University Beijing, China The Institute of Micro-electronics,Tsinghua University Beijing, China

会议类型: 国际会议

会议名称: 2012 International Conference on Electric Technology and Civil Engineering(2012 电子技术与土木工程国际会议 ICETCE 2012)

会议地点: 三峡

会议语种:英文

页码: 3080-3083

在线出版日期: 2012-05-18（万方平台首次上网日期，不代表论文的发表时间）