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Status即將出版Forthcoming
A Battery-Less Crystal-Less 49.8μW Neural-Recording Chip Featuring Two-Tone RF Power Harvesting
Chang, Ziyi1; Yang, Changgui1; Zhang, Yunshan1; Li, Zhuhao1; Zheng, Tianyu1; Luo, Yuxuan1; Zhang, Shaomin1; Xu, Kedi1; Chen, Yong2; Pan, Gang1; Zhao, Bo1
2022
Source PublicationProceedings of the Custom Integrated Circuits Conference
Volume2022-April
AbstractImplantable biomedical devices (IMDs) capable of recording electrophysiological signals effectively facilitate medical treatment, but they also face strict volume requirements [1]-[6]. An effective way to miniaturize the IMDs is to eliminate the bulky components such as battery and crystal. Wireless power transfer (WPT) helps to remove the battery [1]-[5], while a bulky crystal is still required to provide a precise clock to ensure the performance of signal-acquisition and communication blocks (Fig. 1 left, top). To eliminate the crystal, prior work [1] uses an on-chip oscillator as the clock generator (Fig. 1 left, middle), while suffering from off-chip tuning and SNR degradation of analog front-end (AFE), ADC, and wireless transmission. Recently, clock recovering from power-harvesting tone has become a promising solution to further reduce the volume of battery-less systems (Fig. 1 left, bottom) [2]-[5]. However, it's difficult to deal with a trade-off: A high power-harvesting frequency leads to power-hungry clock-recovery circuits [4], while a low frequency requires a large-size antenna [5].
DOI10.1109/CICC53496.2022.9772792
URLView the original
Language英語English
Scopus ID2-s2.0-85130762189
Fulltext Access
Citation statistics
Document TypeConference paper
CollectionUniversity of Macau
Affiliation1.Zhejiang University, Hangzhou, China
2.University of Macau, Macao
Recommended Citation
GB/T 7714
Chang, Ziyi,Yang, Changgui,Zhang, Yunshan,et al. A Battery-Less Crystal-Less 49.8μW Neural-Recording Chip Featuring Two-Tone RF Power Harvesting[C],2022.
APA Chang, Ziyi,Yang, Changgui,Zhang, Yunshan,Li, Zhuhao,Zheng, Tianyu,Luo, Yuxuan,Zhang, Shaomin,Xu, Kedi,Chen, Yong,Pan, Gang,&Zhao, Bo.(2022).A Battery-Less Crystal-Less 49.8μW Neural-Recording Chip Featuring Two-Tone RF Power Harvesting.Proceedings of the Custom Integrated Circuits Conference,2022-April.
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