Analytical method to determine optimal out-of-band gain in multi-bit delta-sigma modulator

Awinash Anand, Nischal Koirala, Ramesh K. Pokharel, Haruichi Kanaya, Keiji Yoshida

研究成果: Contribution to journalArticle査読

抄録

A simple, systematic and deterministic MATLAB simulation which employs Risbo method and analytical simulation is proposed to determine the optimal out-of-band gain to achieve a maximal SNR and the maximum stable amplitude in a multi-bit delta-sigma modulator. Using the proposed method, a 128 MS/s, 2MHz signal bandwidth 4th order 2-bit continuous-time delta-sigma modulator is designed and implemented in 0.18 μm CMOS technology to verify the concept. As a result, the modulator achieves a peak SNDR of 79.3 dB and a dynamic range of 83 dB for a 2MHz signal bandwidth (OSR = 32) while consuming only 7.8mW from 1.8V supply.

本文言語英語
ページ(範囲)1598-1603
ページ数6
ジャーナルIEICE Electronics Express
9
20
DOI
出版ステータス出版済み - 2012

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

フィンガープリント 「Analytical method to determine optimal out-of-band gain in multi-bit delta-sigma modulator」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル