A 64-channel ultra-low power system-on-chip for local field and action potentials recording

Alberto Rodríguez-Pérez; Manuel Delgado-Restituto; Angela Darie; Cristina Soto-Sánchez; Eduardo Fernández-Jover; Ángel Rodríguez-Vázquez

doi:10.1117/12.2178474

1 June 2015 A 64-channel ultra-low power system-on-chip for local field and action potentials recording

Alberto Rodríguez-Pérez, Manuel Delgado-Restituto, Angela Darie, Cristina Soto-Sánchez, Eduardo Fernández-Jover, Ángel Rodríguez-Vázquez

Author Affiliations +

Proceedings Volume 9518, Bio-MEMS and Medical Microdevices II; 951806 (2015) https://doi.org/10.1117/12.2178474
Event: SPIE Microtechnologies, 2015, Barcelona, Spain

Abstract

This paper reports an integrated 64-channel neural recording sensor. Neural signals are acquired, filtered, digitized and compressed in the channels. Additionally, each channel implements an auto-calibration mechanism which configures the transfer characteristics of the recording site. The system has two transmission modes; in one case the information captured by the channels is sent as uncompressed raw data; in the other, feature vectors extracted from the detected neural spikes are released. Data streams coming from the channels are serialized by an embedded digital processor. Experimental results, including in vivo measurements, show that the power consumption of the complete system is lower than 330μW.

Citation Download Citation

Alberto Rodríguez-Pérez, Manuel Delgado-Restituto, Angela Darie, Cristina Soto-Sánchez, Eduardo Fernández-Jover, and Ángel Rodríguez-Vázquez "A 64-channel ultra-low power system-on-chip for local field and action potentials recording", Proc. SPIE 9518, Bio-MEMS and Medical Microdevices II, 951806 (1 June 2015); https://doi.org/10.1117/12.2178474

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