A wireless SoC for alimentary canal pH value continuously monitoring

A wireless system-on-chip (SoC) dedicated for detecting the pH value of human alimentary canal is presented in this paper. All the necessary circuit functions for a swallowable miniature pH monitoring device is integrated in this SoC except the electrochemical sensor. The whole chip is composed of f...

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Published in2011 IEEE 54th International Midwest Symposium on Circuits and Systems (MWSCAS) pp. 1 - 4
Main Authors Binjie Zhu, Hanjun Jiang, Liyuan Liu, Jigang Shao, Liwei Deng, Fule Li, Chun Zhang, Zhihua Wang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2011
Subjects
Batteries
Radio frequency
Transceivers
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Summary:A wireless system-on-chip (SoC) dedicated for detecting the pH value of human alimentary canal is presented in this paper. All the necessary circuit functions for a swallowable miniature pH monitoring device is integrated in this SoC except the electrochemical sensor. The whole chip is composed of four major parts which are analog front end (AFE), power management (PM), digital controller and the RF transceiver. A novel pH sensor interface structure is also proposed in this paper, which can read the pH sensor output precisely. The SoC is fabricated in 0.18μm CMOS process and occupies 2.0*1.6mm 2 .
ISBN:9781612848563
1612848567
ISSN:1548-3746
1558-3899
DOI:10.1109/MWSCAS.2011.6026525