Abstract
A compact area/power efficient electrode-matched neural-spike detector (NSD) is proposed to provide an implantable multi-electrode array (MEA). A correlation scheme with only the input sampling capacitors makes an area reduction, and the recording of neural-spike events enables a power reduction, showing 0.0044 mm 2 and 0.55 μW. Together with proposed NSD, an implantable 256-channel MEA is fabricated. The electrical measurement results show that the NSD achieves an input-referred noise of 10.1 μV rms with 1 kHz to 10 kHz bandwidth, providing NEF/PEF/AEF of 1.71/5.28/0.0044, respectively, and CMRR of 67.5 dB. It shows ×7.5/×1.6 area/power improvements, compared to previous state-of-the-art NSDs. The fabricated implantable MEA is demonstrated by cell-cultured and brain-sliced experiments.
| Original language | English |
|---|---|
| Title of host publication | 2017 IEEE Biomedical Circuits and Systems Conference, BioCAS 2017 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1-4 |
| Number of pages | 4 |
| ISBN (Electronic) | 9781509058037 |
| DOIs | |
| Publication status | Published - 2018 Mar 23 |
| Event | 2017 IEEE Biomedical Circuits and Systems Conference, BioCAS 2017 - Torino, Italy Duration: 2017 Oct 19 → 2017 Oct 21 |
Publication series
| Name | 2017 IEEE Biomedical Circuits and Systems Conference, BioCAS 2017 - Proceedings |
|---|---|
| Volume | 2018-January |
Other
| Other | 2017 IEEE Biomedical Circuits and Systems Conference, BioCAS 2017 |
|---|---|
| Country | Italy |
| City | Torino |
| Period | 17/10/19 → 17/10/21 |
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All Science Journal Classification (ASJC) codes
- Biomedical Engineering
- Electrical and Electronic Engineering
- Instrumentation
Cite this
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An area/power efficient electrode-matched neural-spike detector embedded in implantable 256-channel MEA. / Han, Myungjin; Ha, Go Eun; Cheong, Eunji; Han, Gunhee; Chae, Youngcheol.
2017 IEEE Biomedical Circuits and Systems Conference, BioCAS 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. p. 1-4 (2017 IEEE Biomedical Circuits and Systems Conference, BioCAS 2017 - Proceedings; Vol. 2018-January).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - An area/power efficient electrode-matched neural-spike detector embedded in implantable 256-channel MEA
AU - Han, Myungjin
AU - Ha, Go Eun
AU - Cheong, Eunji
AU - Han, Gunhee
AU - Chae, Youngcheol
PY - 2018/3/23
Y1 - 2018/3/23
N2 - A compact area/power efficient electrode-matched neural-spike detector (NSD) is proposed to provide an implantable multi-electrode array (MEA). A correlation scheme with only the input sampling capacitors makes an area reduction, and the recording of neural-spike events enables a power reduction, showing 0.0044 mm 2 and 0.55 μW. Together with proposed NSD, an implantable 256-channel MEA is fabricated. The electrical measurement results show that the NSD achieves an input-referred noise of 10.1 μV rms with 1 kHz to 10 kHz bandwidth, providing NEF/PEF/AEF of 1.71/5.28/0.0044, respectively, and CMRR of 67.5 dB. It shows ×7.5/×1.6 area/power improvements, compared to previous state-of-the-art NSDs. The fabricated implantable MEA is demonstrated by cell-cultured and brain-sliced experiments.
AB - A compact area/power efficient electrode-matched neural-spike detector (NSD) is proposed to provide an implantable multi-electrode array (MEA). A correlation scheme with only the input sampling capacitors makes an area reduction, and the recording of neural-spike events enables a power reduction, showing 0.0044 mm 2 and 0.55 μW. Together with proposed NSD, an implantable 256-channel MEA is fabricated. The electrical measurement results show that the NSD achieves an input-referred noise of 10.1 μV rms with 1 kHz to 10 kHz bandwidth, providing NEF/PEF/AEF of 1.71/5.28/0.0044, respectively, and CMRR of 67.5 dB. It shows ×7.5/×1.6 area/power improvements, compared to previous state-of-the-art NSDs. The fabricated implantable MEA is demonstrated by cell-cultured and brain-sliced experiments.
UR - http://www.scopus.com/inward/record.url?scp=85050032988&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85050032988&partnerID=8YFLogxK
U2 - 10.1109/BIOCAS.2017.8325057
DO - 10.1109/BIOCAS.2017.8325057
M3 - Conference contribution
T3 - 2017 IEEE Biomedical Circuits and Systems Conference, BioCAS 2017 - Proceedings
SP - 1
EP - 4
BT - 2017 IEEE Biomedical Circuits and Systems Conference, BioCAS 2017 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
ER -