Low-Noise ASIC and New Layout of Multipolar Electrode for Both High ENG Selectivity and Parasitic Signal Rejection

Serge Bernard (1) , Lionel Gouyet (2) , Guy Cathébras (2) , Fabien Soulier (2) , David Guiraud (3, 2) , Yves Bertrand (1)

1 SysMIC - Conception et Test de Systèmes MICroélectroniques
2 DEMAR - Artificial movement and gait restoration
3 LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier

In order to extract and separate Action Potential (AP) signals according to their nerve fascicule origins, we propose a new architecture of a multipolar cuff electrode and an optimized integrated acquisition circuit. The proposed electrode has a specific layout of a large number of poles in order to both reject parasitic signals, such as electromyogram and provide a maximum of spatial selectivity for ENG signals. For one channel to be recorded, we need to consider seven recording sites. A low-noise integrated circuit (ASIC) has been designed in order to perform this first step of analog processing on each set of seven considered poles

Domaines: Micro et nanotechnologies/Microélectronique

Serge Bernard, Lionel Gouyet, Guy Cathébras, Fabien Soulier, David Guiraud, et al.. Low-Noise ASIC and New Layout of Multipolar Electrode for Both High ENG Selectivity and Parasitic Signal Rejection. ICECS'07: International Conference on Electronics, Circuits and Systems, Dec 2007, Marrakech, Morocco, Morocco. pp.A4L-A. ⟨lirmm-00195231⟩