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.

元の言語English
ホスト出版物のタイトル2015 European Conference on Circuit Theory and Design, ECCTD 2015
出版者Institute of Electrical and Electronics Engineers Inc.
ISBN(印刷物)9781479998777
DOI
出版物ステータスPublished - 2015 10 16
外部発表Yes
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
Norway
Trondheim
期間15/8/2415/8/26

Fingerprint

Low pass filters
Switched capacitor filters
Signal to noise ratio
Capacitors
Capacitance
Electric potential
Topology
Sampling
Networks (circuits)

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

これを引用

Nicodimus, R., & Shima, T. (2015). Design of low-noise switched-capacitor low-pass filters with adaptive configuration. : 2015 European Conference on Circuit Theory and Design, ECCTD 2015 [7300033] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCTD.2015.7300033

Design of low-noise switched-capacitor low-pass filters with adaptive configuration. / Nicodimus, Retdian; Shima, Takeshi.

2015 European Conference on Circuit Theory and Design, ECCTD 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7300033.

研究成果: Conference contribution

Nicodimus, R & Shima, T 2015, Design of low-noise switched-capacitor low-pass filters with adaptive configuration. : 2015 European Conference on Circuit Theory and Design, ECCTD 2015., 7300033, Institute of Electrical and Electronics Engineers Inc., European Conference on Circuit Theory and Design, ECCTD 2015, Trondheim, Norway, 15/8/24. https://doi.org/10.1109/ECCTD.2015.7300033
Nicodimus R, Shima T. Design of low-noise switched-capacitor low-pass filters with adaptive configuration. : 2015 European Conference on Circuit Theory and Design, ECCTD 2015. Institute of Electrical and Electronics Engineers Inc. 2015. 7300033 https://doi.org/10.1109/ECCTD.2015.7300033
Nicodimus, Retdian ; Shima, Takeshi. / Design of low-noise switched-capacitor low-pass filters with adaptive configuration. 2015 European Conference on Circuit Theory and Design, ECCTD 2015. Institute of Electrical and Electronics Engineers Inc., 2015.
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