Hammond, P.A., Ali, D. and Cumming, D.R.S. (2005) A system-on-chip digital pH meter for use in a wireless diagnostic capsule. IEEE Transactions on Biomedical Engineering, 52(4), pp. 687-694. (doi: 10.1109/TBME.2005.844041)
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Publisher's URL: http://dx.doi.org/10.1109/TBME.2005.844041
Abstract
This paper describes the design and implementation of a system-on-chip digital pH meter, for use in a wireless capsule application. The system is organized around an 8-bit microcontroller, designed to be functionally identical to the Motorola 6805. The analog subsystem contains a floating-electrode ISFET, which is fully compatible with a commercial CMOS process. On-chip programmable voltage references and multiplexors permit flexibility with the minimum of external connections. The chip is designed in a modular fashion to facilitate verification and component re-use. The single-chip pH meter can be directly connected to a personal computer, and gives a response of 37 bits/pH, within an operating range of 7 pH units.
Item Type: | Articles |
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Keywords: | CMOS, ISFET, pH, system-on-chip. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Cumming, Professor David |
Authors: | Hammond, P.A., Ali, D., and Cumming, D.R.S. |
Subjects: | R Medicine > R Medicine (General) Q Science > QC Physics T Technology > T Technology (General) |
College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
Journal Name: | IEEE Transactions on Biomedical Engineering |
Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
ISSN: | 0018-9294 |
Copyright Holders: | Copyright © 2005 IEEE |
First Published: | First published in IEEE Transactions on Biomedical Engineering 52(4):687-694 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher. |
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