Title :
A low-power multi-band ECoG/EEG interface IC
Author :
Zhang, Fan ; Mishra, Apurva ; Richardson, Andrew G. ; Zanos, Stavros ; Otis, Brian P.
Author_Institution :
Dept. of Electr. Eng., Univ. of Washington, Seattle, WA, USA
Abstract :
We present a 6.4 μW electrocorticography (ECoG)/electroencephalography (EEG) processing integrated circuit (EPIC) with 0.4 μVrms noise floor intended for emerging brain-computer interface (BCI) applications. This chip conditions the signal and simultaneously extracts energy in four fully-programmable frequency bands. Functionality is demonstrated by tuning the four bands to important frequency bands used by ECoG/EEG applications: α (8-12Hz), β (18-26Hz), low-γ (30-50Hz) and γ (70-100Hz). Measured results from in-vivo ECoG recording from the primary motor cortex of an awake monkey are presented.
Keywords :
brain-computer interfaces; electroencephalography; integrated circuits; brain-computer interface; electrocorticography; electroencephalography; low-power multi-band ECoG/EEG interface IC; Band pass filters; Capacitors; Clocks; Electrodes; Electroencephalography; Noise; Tuning;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2010 IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-5758-8
DOI :
10.1109/CICC.2010.5617607