Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

A CMOS Self-Powered Front-End Architecture for Subcutaneous Event-Detector DevicesBiomedical Integrated Instrumentation

A CMOS Self-Powered Front-End Architecture for Subcutaneous Event-Detector Devices: Biomedical... [This Chapter is focused on the development of an integrated instrumentation to work with three electrodes amperometric Biosensor. First of all, it is introduced the conception of three electrodes configuration and how it works. Moreover, some typical electrochemical techniques like Voltammetry, EIS and amperometry, are introduced to the reader. The instrumentation electronics is based on a potentiostat architecture, which is explained in detail and experimentally validated. The obtained results with the full-custom approach are compared with the ones obtained using a commercial potentiostat. In that way, the correct operation of the designed circuits is fully validated. Furthermore, this chapter explains the conception of a Lock-In amplifier circuit used to detect the real and imaginary components of the complex impedance measured from the Biosensor. This circuit is theoretically explained and some simulated results are shown. Finally, the conception of Biotelemetry or how to transmit information from the subcutaneous device to the external reader is introduced. Then, the implemented protocol in this work is detailed. In summary, this chapter presents the developed BioChip IC that is able to drive the sensor, process the measured data and transmit the data to the external side through an inductive link.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

A CMOS Self-Powered Front-End Architecture for Subcutaneous Event-Detector DevicesBiomedical Integrated Instrumentation

Download PDF
39 pages

Loading next page...
 
/lp/springer-journals/a-cmos-self-powered-front-end-architecture-for-subcutaneous-event-Ah0Xwg23Ai
Publisher
Springer Netherlands
Copyright
© Springer Science+Business Media B.V. 2011
ISBN
978-94-007-0685-9
Pages
93 –132
DOI
10.1007/978-94-007-0686-6_3
Publisher site
See Chapter on Publisher Site

Abstract

[This Chapter is focused on the development of an integrated instrumentation to work with three electrodes amperometric Biosensor. First of all, it is introduced the conception of three electrodes configuration and how it works. Moreover, some typical electrochemical techniques like Voltammetry, EIS and amperometry, are introduced to the reader. The instrumentation electronics is based on a potentiostat architecture, which is explained in detail and experimentally validated. The obtained results with the full-custom approach are compared with the ones obtained using a commercial potentiostat. In that way, the correct operation of the designed circuits is fully validated. Furthermore, this chapter explains the conception of a Lock-In amplifier circuit used to detect the real and imaginary components of the complex impedance measured from the Biosensor. This circuit is theoretically explained and some simulated results are shown. Finally, the conception of Biotelemetry or how to transmit information from the subcutaneous device to the external reader is introduced. Then, the implemented protocol in this work is detailed. In summary, this chapter presents the developed BioChip IC that is able to drive the sensor, process the measured data and transmit the data to the external side through an inductive link.]

Published: Jan 20, 2011

Keywords: Analog integrated circuits; Microelectronic implants; Bioimpedance; Amperometric sensors; Electrochemical impedance spectroscopy; Phase detection; Active filters; Biomedical telemetry

There are no references for this article.