Chapter 4.3

Low-Power Integrated Circuit Design for Wearable Biopotential Sensing

Sohmyung Ha1, Chul Kim1, Yu M. Chi2 and Gert Cauwenberghs1,    1Department of Bioengineering at University of California, San Diego, La Jolla, CA, USA,    2Cognionics, Inc., San Diego, CA, USA

This chapter presents an overview of the fundamentals and state-of-the-art in non-invasive biopotential recording instrumentation with a focus on micropower-integrated circuit design for high-density and unobtrusive wearable applications. Fundamental limits in sampling, noise, and energy efficiency in the design of front-end biopotential amplifiers and acquisition circuits are reviewed, and practical circuits that approach these limits using metal-oxide-semiconductor (MOS) ...

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