Adaptive spike detection method based on capacitor arrays dedicated to implantable neural recording microsystems

Author

Barati, Saied ; Sodagar, Amir M.

Author_Institution

Electr. Eng. Dept., S. Rajaee Univ., Tehran, Iran

fYear

2010

fDate

Aug. 31 2010-Sept. 4 2010

Firstpage

6445

Lastpage

6448

Abstract

An analog spike detector circuit is presented, which adaptively generates a threshold level for spike detection based on hard-thresholding. Operation of the circuit was tested not only with a neural signal obtained from real in-vivo recording from a live animal, but also with a large sinusoidal baseline variation intentionally added to examine the capability of the circuit to track baseline variations as large as 50mV. The circuit runs at 3.3V supply voltage and dissipates 270μW.

Keywords

bioelectric potentials; biomedical electronics; capacitors; detector circuits; medical signal detection; neurophysiology; prosthetics; adaptive spike detection method; analog spike detector circuit; capacitor arrays; implantable neural recording microsystems; live animal; power 270 muW; real in-vivo recording; threshold level; voltage 3.3 V; Capacitors; Conferences; Detectors; Electroencephalography; Feature extraction; Noise measurement; Wireless communication; Electronics, Medical; Neurosciences; Prostheses and Implants;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE

Conference_Location

Buenos Aires

ISSN

1557-170X

Print_ISBN

978-1-4244-4123-5

Type

conf

DOI

10.1109/IEMBS.2010.5627339

Filename

5627339