A Hybrid Bioimpedance Spectroscopy Architecture for a Wide Frequency Exploration of Tissue Electrical Properties

Achraf Lamlih, Philippe Freitas, Mohamed-Moez Belhaj, Jeremie Salles, Vincent Kerzerho, Fabien Soulier, Serge Bernard, Tristan Rouyer, Sylvain Bonhommeau
2018 2018 IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC)  
Bioimpedance spectroscopy (BIS) is a technique increasingly used for measuring the electrical properties of biological tissues. Choosing an integrated system architecture for bioimpedance spectroscopy is very dependent on the application and ruled by several constraints such as precision, bandwidth and measurement time. This paper presents a hybrid architecture providing fast measurement time while maximizing precision. This new architecture has been defined for a wide exploration of electrical
more » ... ation of electrical properties of biological tissues. It combines the frequency sweep and multitone measurement techniques. Using the multitone measurement over the α dispersion and a frequency sweep over the β dispersion, enable the system architect to overcome the design challenges faced when using each technique separately. Its critical blocks are optimized for a bandwidth up to 10 MHz, thus covering the α and β frequency ranges, an example of the design optimization is detailed for the current driver.
doi:10.1109/vlsi-soc.2018.8644829 dblp:conf/vlsi/LamlihFBSKSBRB18 fatcat:jvcm37sroff5lpcrcdbxxjthq4