Design of low-noise switched-capacitor low-pass filters with adaptive configuration

Retdian Nicodimus, Takeshi Shima

研究成果: Conference contribution

抄録

Noise and area consumption has been a tradeoff in circuit design. Especially for switched-capacitor filters (SCF), kT/C noise gives a limitation to the minimum value of unit capacitance. In case of SCFs with a large capacitance spread, this limitation will result in a large area consumption due to large capacitors. Charge scaling technique combined with correlated double sampling gives a solution to this problem [18]. However, due to a fixed topology, the conventional designs suffer from lower signal-to-noise ratio (SNR) with small input voltages. When capacitance reduction is less crucial, there is a room to improve the SNR. This paper proposes an SCF with adaptive configuration to improve the SNR at small input signals. The proposed technique can reduce the output noise voltage by 30% for small input signals.

本文言語English
ホスト出版物のタイトル2015 European Conference on Circuit Theory and Design, ECCTD 2015
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(印刷版)9781479998777
DOI
出版ステータスPublished - 2015 10 16
外部発表はい
イベントEuropean Conference on Circuit Theory and Design, ECCTD 2015 - Trondheim, Norway
継続期間: 2015 8 242015 8 26

Other

OtherEuropean Conference on Circuit Theory and Design, ECCTD 2015
国/地域Norway
CityTrondheim
Period15/8/2415/8/26

ASJC Scopus subject areas

  • ハードウェアとアーキテクチャ
  • 電子工学および電気工学

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