An EEG analog front-end design with wireless communication module for a portable EEG monitoring system

Wei Chen Chen*, Yi Chung Chen, Chia Ching Chou, Wai-Chi Fang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

In this paper, a wireless electroencephalography (EEG) acquisition analog front-end (AFE) circuit design is presented. The wireless EEG acquisition system includes an analog front-end readout chipset (AFERC) with extendable channel, a low-power MSP430 microcontroller from Texas Instruments and a commercial Bluetooth 2.0 module (BTM). The front-end readout chipset not only applies the ability of noise attenuation but also modulates the EEG signal into appropriate amplitude. It has individual 10-bit successive approximation register analog-to-digital converter (SAR-ADC) for each EEG channel, and it transmits the EEG signals which have been serially converted to digital format to MSP430. MSP430 is responsible for rearranging the converted digital bits and controlling the BTM with built-in Universal Asynchronous Receiver/Transmitter (UART) interface. The AFERC maximumly reaches to 64 channels, and single channel consumes 80.268 uW. Total power consumption of AFERC is 2.6 mW at with 32 channels, and its Common-Mode-Reject-Ratio (CMRR) is 75 dB.

Original languageEnglish
Title of host publication5th IEEE International Conference on Consumer Electronics - Berlin, ICCE-Berlin 2015
EditorsJose Maria Flores-Arias, Stefan Mozar, Dietmar Hepper, Milan Z. Bjelica, Hans L. Cycon
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages50-51
Number of pages2
ISBN (Electronic)9781479987481
DOIs
StatePublished - 25 Jan 2016
Event5th IEEE International Conference on Consumer Electronics - Berlin, ICCE-Berlin 2015 - Berlin, Germany
Duration: 6 Sep 20159 Sep 2015

Publication series

Name5th IEEE International Conference on Consumer Electronics - Berlin, ICCE-Berlin 2015

Conference

Conference5th IEEE International Conference on Consumer Electronics - Berlin, ICCE-Berlin 2015
CountryGermany
CityBerlin
Period6/09/159/09/15

Keywords

  • Bluetooth 2.0 module
  • EEG
  • MSP430 microcontroller
  • SAR-ADC
  • front-end readout chipset

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    Chen, W. C., Chen, Y. C., Chou, C. C., & Fang, W-C. (2016). An EEG analog front-end design with wireless communication module for a portable EEG monitoring system. In J. M. Flores-Arias, S. Mozar, D. Hepper, M. Z. Bjelica, & H. L. Cycon (Eds.), 5th IEEE International Conference on Consumer Electronics - Berlin, ICCE-Berlin 2015 (pp. 50-51). [7391321] (5th IEEE International Conference on Consumer Electronics - Berlin, ICCE-Berlin 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICCE-Berlin.2015.7391321