Development of biosignal recording board system with agile control of circuit characteristics for various biosignals

Keita Ito, Takaharu Tani, Takuma Iwagami, Satoru Nishino, Koji Kiyoyama, Tetsu Tanaka

Research output: Contribution to journalArticlepeer-review

Abstract

Recently, a novel recording system is strongly required for agile and precise recording of biosignals in various fields, such as medicine, neuroscience, BMI (Brain Machine Interface), and so on. To enable such various biosignal recording, we have proposed an agile biosignal recording system with a newly designed analog front-end LSI chip having amplification, filtering, and A/D conversion functions. In this paper, we designed and evaluated a neural signal recording circuit and a portable front-end motherboard. The neural signal recording circuit chip and discrete ICs were mounted on the motherboard. We confirmed that our functional LNA (Low Noise Amplifier) had variable gains and cutoff frequencies appropriate for various biosignals, and also confirmed that biosignal recording board system successfully measured a human electrocardiogram.

Original languageEnglish
Pages (from-to)348-353
Number of pages6
JournalIEEJ Transactions on Electronics, Information and Systems
Volume137
Issue number2
DOIs
Publication statusPublished - 2017 Jan 1

Keywords

  • Analog front-end
  • Biosignal
  • Neural probe

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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