A current noise reduction technique in chopper instrumentation amplifier for high-impedance sensors

• Akita Ippei

  Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology

• Ishida Makoto

  Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology Electronics-Inspired Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology

抄録

A current noise reduction technique in chopper instrumentation amplifier (CIA) for high-impedance sensor is presented. The proposed technique is based on a time gating method to reduce time varying shot noise which is induced by channel charge injection of chopper switch transistors. An implemented CIA with the proposed time gating technique achieves more than 80-% noise reduction capability.

収録刊行物

• IEICE Electronics Express

  IEICE Electronics Express 12 (11), 20150374-20150374, 2015

  一般社団法人 電子情報通信学会

キーワード

• chopper stabilization
• instrumentation amplifiers
• input current noise

詳細情報

• CRID: 1390282680191068672
• NII論文ID: 130005076117
• DOI: 10.1587/elex.12.20150374
• ISSN: 13492543
• Web Site: https://www.jstage.jst.go.jp/article/elex/12/11/12_12.20150374/_pdf
• 本文言語コード: en
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