100-Channel wireless neural recording system with 54-Mb/s data link and 40%-efficiency power link

Kuang-Wei Cheng; Xiaodan Zou; Jia Hao Cheong; Rui Feng Xue; Zhiming Chen; Lei Yao; Hyouk Kyu Cha; San Jeow Cheng; Peng Li; Lei Liu; Luis Andia; Chee Keong Ho; Ming Yuan Cheng; Zhu Duan; Ramamoorthy Rajkumar; Yuanjin Zheng; Wang Ling Goh; Yongxin Guo; Gavin Dawe; Woo Tae Park; Minkyu Je

doi:10.1109/IPEC.2012.6522656

100-Channel wireless neural recording system with 54-Mb/s data link and 40%-efficiency power link

Kuang-Wei Cheng, Xiaodan Zou, Jia Hao Cheong, Rui Feng Xue, Zhiming Chen, Lei Yao, Hyouk Kyu Cha, San Jeow Cheng, Peng Li, Lei Liu, Luis Andia, Chee Keong Ho, Ming Yuan Cheng, Zhu Duan, Ramamoorthy Rajkumar, Yuanjin Zheng, Wang Ling Goh, Yongxin Guo, Gavin Dawe, Woo Tae ParkMinkyu Je

Department of Electrical Engineering

Research output: Contribution to conference › Paper › peer-review

19 Citations (Scopus)

Abstract

For real-time monitoring of brain activities, a highdata-rate, low-power, and highly mobile neural recording system is desirable. This paper presents a complete chipset for a 100-channel wireless neural recording system, which consists of 3 ICs - a neural interface (NI) IC and a wireless power RX and data TX IC for an implant unit (IU), and a wireless data RX IC for an external head unit (EHU). With a dual S/H NI architecture and a burst-mode (BM) wideband (WB) FSK TX, the IU achieves a 100-channel recording and wireless transmission at 54.24Mb/s while consuming only 6.6mW. Using power coupling with optimal resonant load transformation and high-efficiency rectifier and LDO circuits, the whole wireless power link achieves 40% efficiency over 1cm distance with 0.5cm tissue in between. The EHU needs to transmit the RF power lower than 30mW to operate the IU. The EHU is implemented using a crystal-less BM WB FSK RX consuming only 14.4mW at 27.12Mb/s.

Original language	English
Pages	185-188
Number of pages	4
DOIs	https://doi.org/10.1109/IPEC.2012.6522656
Publication status	Published - 2012 Dec 1
Event	2012 IEEE Asian Solid-State Circuits Conference, A-SSCC 2012 - Kobe, Japan Duration: 2012 Nov 12 → 2012 Nov 14

Other

Other	2012 IEEE Asian Solid-State Circuits Conference, A-SSCC 2012
Country/Territory	Japan
City	Kobe
Period	12-11-12 → 12-11-14

All Science Journal Classification (ASJC) codes

Hardware and Architecture
Electrical and Electronic Engineering

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10.1109/IPEC.2012.6522656

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Cheng, K-W., Zou, X., Cheong, J. H., Xue, R. F., Chen, Z., Yao, L., Cha, H. K., Cheng, S. J., Li, P., Liu, L., Andia, L., Ho, C. K., Cheng, M. Y., Duan, Z., Rajkumar, R., Zheng, Y., Goh, W. L., Guo, Y., Dawe, G., ... Je, M. (2012). 100-Channel wireless neural recording system with 54-Mb/s data link and 40%-efficiency power link. 185-188. Paper presented at 2012 IEEE Asian Solid-State Circuits Conference, A-SSCC 2012, Kobe, Japan. https://doi.org/10.1109/IPEC.2012.6522656

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title = "100-Channel wireless neural recording system with 54-Mb/s data link and 40%-efficiency power link",

abstract = "For real-time monitoring of brain activities, a highdata-rate, low-power, and highly mobile neural recording system is desirable. This paper presents a complete chipset for a 100-channel wireless neural recording system, which consists of 3 ICs - a neural interface (NI) IC and a wireless power RX and data TX IC for an implant unit (IU), and a wireless data RX IC for an external head unit (EHU). With a dual S/H NI architecture and a burst-mode (BM) wideband (WB) FSK TX, the IU achieves a 100-channel recording and wireless transmission at 54.24Mb/s while consuming only 6.6mW. Using power coupling with optimal resonant load transformation and high-efficiency rectifier and LDO circuits, the whole wireless power link achieves 40% efficiency over 1cm distance with 0.5cm tissue in between. The EHU needs to transmit the RF power lower than 30mW to operate the IU. The EHU is implemented using a crystal-less BM WB FSK RX consuming only 14.4mW at 27.12Mb/s.",

author = "Kuang-Wei Cheng and Xiaodan Zou and Cheong, {Jia Hao} and Xue, {Rui Feng} and Zhiming Chen and Lei Yao and Cha, {Hyouk Kyu} and Cheng, {San Jeow} and Peng Li and Lei Liu and Luis Andia and Ho, {Chee Keong} and Cheng, {Ming Yuan} and Zhu Duan and Ramamoorthy Rajkumar and Yuanjin Zheng and Goh, {Wang Ling} and Yongxin Guo and Gavin Dawe and Park, {Woo Tae} and Minkyu Je",

year = "2012",

month = dec,

day = "1",

doi = "10.1109/IPEC.2012.6522656",

language = "English",

pages = "185--188",

note = "2012 IEEE Asian Solid-State Circuits Conference, A-SSCC 2012 ; Conference date: 12-11-2012 Through 14-11-2012",

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Cheng, K-W, Zou, X, Cheong, JH, Xue, RF, Chen, Z, Yao, L, Cha, HK, Cheng, SJ, Li, P, Liu, L, Andia, L, Ho, CK, Cheng, MY, Duan, Z, Rajkumar, R, Zheng, Y, Goh, WL, Guo, Y, Dawe, G, Park, WT & Je, M 2012, '100-Channel wireless neural recording system with 54-Mb/s data link and 40%-efficiency power link', Paper presented at 2012 IEEE Asian Solid-State Circuits Conference, A-SSCC 2012, Kobe, Japan, 12-11-12 - 12-11-14 pp. 185-188. https://doi.org/10.1109/IPEC.2012.6522656

TY - CONF

T1 - 100-Channel wireless neural recording system with 54-Mb/s data link and 40%-efficiency power link

AU - Cheng, Kuang-Wei

AU - Zou, Xiaodan

AU - Cheong, Jia Hao

AU - Xue, Rui Feng

AU - Chen, Zhiming

AU - Yao, Lei

AU - Cha, Hyouk Kyu

AU - Cheng, San Jeow

AU - Li, Peng

AU - Liu, Lei

AU - Andia, Luis

AU - Ho, Chee Keong

AU - Cheng, Ming Yuan

AU - Duan, Zhu

AU - Rajkumar, Ramamoorthy

AU - Zheng, Yuanjin

AU - Goh, Wang Ling

AU - Guo, Yongxin

AU - Dawe, Gavin

AU - Park, Woo Tae

AU - Je, Minkyu

PY - 2012/12/1

Y1 - 2012/12/1

N2 - For real-time monitoring of brain activities, a highdata-rate, low-power, and highly mobile neural recording system is desirable. This paper presents a complete chipset for a 100-channel wireless neural recording system, which consists of 3 ICs - a neural interface (NI) IC and a wireless power RX and data TX IC for an implant unit (IU), and a wireless data RX IC for an external head unit (EHU). With a dual S/H NI architecture and a burst-mode (BM) wideband (WB) FSK TX, the IU achieves a 100-channel recording and wireless transmission at 54.24Mb/s while consuming only 6.6mW. Using power coupling with optimal resonant load transformation and high-efficiency rectifier and LDO circuits, the whole wireless power link achieves 40% efficiency over 1cm distance with 0.5cm tissue in between. The EHU needs to transmit the RF power lower than 30mW to operate the IU. The EHU is implemented using a crystal-less BM WB FSK RX consuming only 14.4mW at 27.12Mb/s.

AB - For real-time monitoring of brain activities, a highdata-rate, low-power, and highly mobile neural recording system is desirable. This paper presents a complete chipset for a 100-channel wireless neural recording system, which consists of 3 ICs - a neural interface (NI) IC and a wireless power RX and data TX IC for an implant unit (IU), and a wireless data RX IC for an external head unit (EHU). With a dual S/H NI architecture and a burst-mode (BM) wideband (WB) FSK TX, the IU achieves a 100-channel recording and wireless transmission at 54.24Mb/s while consuming only 6.6mW. Using power coupling with optimal resonant load transformation and high-efficiency rectifier and LDO circuits, the whole wireless power link achieves 40% efficiency over 1cm distance with 0.5cm tissue in between. The EHU needs to transmit the RF power lower than 30mW to operate the IU. The EHU is implemented using a crystal-less BM WB FSK RX consuming only 14.4mW at 27.12Mb/s.

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U2 - 10.1109/IPEC.2012.6522656

DO - 10.1109/IPEC.2012.6522656

M3 - Paper

AN - SCOPUS:84881064629

SP - 185

EP - 188

T2 - 2012 IEEE Asian Solid-State Circuits Conference, A-SSCC 2012

Y2 - 12 November 2012 through 14 November 2012

ER -

100-Channel wireless neural recording system with 54-Mb/s data link and 40%-efficiency power link

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