TY - CHAP
T1 - Characterisation of a multi-channel multiplexed EMG recording system
T2 - 2019 IEEE Biomedical Circuits and Systems Conference, BioCAS 2019
AU - Jager, Kylie De
AU - Mentink, Michael
AU - Lancashire, Henry
AU - Al-Ajam, Yazan
AU - Taylor, Stephen
AU - Vanhoestenberghe, Anne
N1 - Funding Information:
Thanks to the Restoration & Function Trust (RAFT, UK), the Therapeutic Acceleration Support (TAS) Fund and the Wellcome Trust [grant number 106574/Z/14/Z] for financial support.
Publisher Copyright:
© 2019 IEEE.
PY - 2019/10
Y1 - 2019/10
N2 - An implantable EMG amplifier with a novel multiplexed frontend for in vivo selection of optimal electrode configurations, was designed using commercially available components. The multiplexers are advantageous as optimal electrode configuration are not known before implantation. The system has 6 ADC recording channels (ADS1298 biopotential amplifier, 2 kHz sampling frequency, 16-bit resolution), and three 8 × 8 multiplexer arrays (ADG2188), 2 channels per MUX. The system was characterised by measuring input impedance (5.8 MOhm) and frequency response (CMRR 49.0 dB; SNR 51.4 dB). EMG recordings from implanted epimysial electrodes showed lower signal quality (13.5 dB) compared with a commercial EMG recorder (19.5 dB), nonetheless the signals appeared suitable for myoelectric control applications. An implantable version of the EMG recorder, housed within a hermetically sealed ceramic package, should improve signal quality.
AB - An implantable EMG amplifier with a novel multiplexed frontend for in vivo selection of optimal electrode configurations, was designed using commercially available components. The multiplexers are advantageous as optimal electrode configuration are not known before implantation. The system has 6 ADC recording channels (ADS1298 biopotential amplifier, 2 kHz sampling frequency, 16-bit resolution), and three 8 × 8 multiplexer arrays (ADG2188), 2 channels per MUX. The system was characterised by measuring input impedance (5.8 MOhm) and frequency response (CMRR 49.0 dB; SNR 51.4 dB). EMG recordings from implanted epimysial electrodes showed lower signal quality (13.5 dB) compared with a commercial EMG recorder (19.5 dB), nonetheless the signals appeared suitable for myoelectric control applications. An implantable version of the EMG recorder, housed within a hermetically sealed ceramic package, should improve signal quality.
KW - Biopotential recordings
KW - bipolar
KW - electrode array
KW - electromyography
KW - implantable electronics
KW - monopolar
KW - tripolar
UR - http://www.scopus.com/inward/record.url?scp=85077091167&partnerID=8YFLogxK
U2 - 10.1109/BIOCAS.2019.8918710
DO - 10.1109/BIOCAS.2019.8918710
M3 - Conference paper
AN - SCOPUS:85077091167
T3 - BioCAS 2019 - Biomedical Circuits and Systems Conference, Proceedings
BT - BioCAS 2019 - Biomedical Circuits and Systems Conference, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 17 October 2019 through 19 October 2019
ER -