Feedforward charge injection technique in a continuous time delta-sigma modulator

Awinash Anand, Daisuke Kanemoto, Ghazal A. Fahmy, Ramesh Pokharel, Haruichi Kanaya, Keiji Yoshida

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

In this paper, we analyze the feedforward charge injection technique (FCIT) in a continuous time delta-sigma modulator (CTDSM) and explain the theory behind improvement of SNR. We find that the feedforward charge injection technique (FCIT) in a CTDSM significantly reduces the node voltage swing at the input of the operational transconductance amplifier (OTA) and thereby relaxes the design constraint on OTA by suppressing third harmonics and thus reduces power consumption significantly. We also observe that there exist three different regions of design with respect to the power consumption out of which only one region is critical with respect to power reduction and robust design. Combined with the regions of design FCIT enables to design robust CTDSM with low power consumption.

本文言語英語
ホスト出版物のタイトルIEEE TENCON 2012: Sustainable Development Through Humanitarian Technology
DOI
出版ステータス出版済み - 2012
イベント2012 IEEE Region 10 Conference: Sustainable Development Through Humanitarian Technology, TENCON 2012 - Cebu, フィリピン
継続期間: 11 19 201211 22 2012

その他

その他2012 IEEE Region 10 Conference: Sustainable Development Through Humanitarian Technology, TENCON 2012
国/地域フィリピン
CityCebu
Period11/19/1211/22/12

All Science Journal Classification (ASJC) codes

  • 電子工学および電気工学
  • コンピュータ サイエンスの応用

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