A 0.8V SOP-based cascade multibit delta-sigma modulator for wideband applications

Chien Hung Kuo, Kuan Yi Lee, Shuo Chau Chen

研究成果: 書貢獻/報告類型會議論文篇章

摘要

In this paper, a 0.8V switched-opamp (SOP)-based 22 cascade delta-sigma modulator for wideband applications is presented. The first stage uses low-distortion topology to release the requirement of SOP due to only the quantization noise in integrator path. The second stage employs a CIFB structure without the use of summer in front of the quantizer to decrease the power consumption. Double sampling technique combined with the SOP with two output stages is used to promote the clock efficiency. The proposed fourth-order ΔΣ modulator with CIFF-CIFB structure has been implemented in a 0.13μm CMOS 1P8M technology. The core area excluding PADs is 1.66×1.62 mm2. The peak signal-to-noise plus distortion ratio (SNDR) and dynamic range (DR) of the presented modulator within a 1.1 MHz of bandwidth are 77.9 dB and 85 dB, respectively, under a 20 MHz of clock rate. The power dissipation of the presented ΔΣ modulator is 15.7 mW at a 0.8V of supply voltage.

原文英語
主出版物標題Proceedings of APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems
頁面1224-1227
頁數4
DOIs
出版狀態已發佈 - 2008
事件APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems - Macao, 中国
持續時間: 2008 十一月 302008 十二月 3

其他

其他APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems
國家中国
城市Macao
期間2008/11/302008/12/03

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

指紋 深入研究「A 0.8V SOP-based cascade multibit delta-sigma modulator for wideband applications」主題。共同形成了獨特的指紋。

引用此