Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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The Design of High Precision Pre-amplifier for EEG Signal Measurement

뇌파신호 측정을 위한 고정밀 전치 증폭기의 설계

  • 유선국 (연세대학교 의과대학 의용공학교실) ;
  • 김남현 (연세대학교 의과대학 의용공학교실)
  • Published : 1995.09.01
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Abstract

A high-precision pre-amplifier is designed for general use in EEG measurement system. It consists of signal generator, signal amplifier with a impedance converter, shield driver, body driver, differential amplifier, and isolation amplifier. The combination of minimum use of inaccurate passive components and the appropriate matching of each monolithic amplifiers results in good noise behavior, low leakage current, high CMRR, high input impedance, and high IMRR. The performance of EEG pre-amplifier has been verified by showing the typical EEG pattevn of a nomad person through the clinical experiments.

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References

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