A programmable microsystem using system-on-chip for real-time biotelemetry

Wang, L., Johannessen, E.A., Hammond, P.A., Cui, L., Reid, S.W.J., Cooper, J.M. and Cumming, D.R.S. (2005) A programmable microsystem using system-on-chip for real-time biotelemetry. IEEE Transactions on Biomedical Engineering, 52(7), pp. 1251-1260. (doi: 10.1109/TBME.2005.847562)



Publisher's URL: http://dx.doi.org/10.1109/TBME.2005.847562


A telemetry microsystem, including multiple sensors, integrated instrumentation and a wireless interface has been implemented. We have employed a methodology akin to that for System-on-Chip microelectronics to design an integrated circuit instrument containing several "intellectual property" blocks that will enable convenient reuse of modules in future projects. The present system was optimized for low-power and included mixed-signal sensor circuits, a programmable digital system, a feedback clock control loop and RF circuits integrated on a 5 mm × 5 mm silicon chip using a 0.6 μm, 3.3 V CMOS process. Undesirable signal coupling between circuit components has been investigated and current injection into sensitive instrumentation nodes was minimized by careful floor-planning. The chip, the sensors, a magnetic induction-based transmitter and two silver oxide cells were packaged into a 36 mm × 12 mm capsule format. A base station was built in order to retrieve the data from the microsystem in real-time. The base station was designed to be adaptive and timing tolerant since the microsystem design was simplified to reduce power consumption and size. The telemetry system was found to have a packet error rate of 10<sup>-</sup><sup>3</sup> using an asynchronous simplex link. Trials in animal carcasses were carried out to show that the transmitter was as effective as a conventional RF device whilst consuming less power.

Item Type:Articles
Keywords:Biomedical telemetry, laboratory-in-a-pill, microsystems, system-on-chip, very-large-scale integration.
Glasgow Author(s) Enlighten ID:Cumming, Professor David and Reid, Professor Stuart
Authors: Wang, L., Johannessen, E.A., Hammond, P.A., Cui, L., Reid, S.W.J., Cooper, J.M., and Cumming, D.R.S.
Subjects:R Medicine > R Medicine (General)
Q Science > QC Physics
T Technology > T Technology (General)
College/School:College of Medical Veterinary and Life Sciences > School of Veterinary Medicine
College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:IEEE Transactions on Biomedical Engineering
Copyright Holders:Copyright © 2005 IEEE
First Published:First published in IEEE Transactions on Biomedical Engineering 52(7):1251-1260
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher.

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