A low noise full customized 32-channel CMOS biopotential sensor chip for extracellular neural signal recording

Author

Zhang, Xin ; Daly, James C. ; Cao, Yong

Author_Institution

Dept. of Electr., Comput. & Biomed. Eng., Rhode Island Univ., Kingston, RI, USA

fYear

2005

fDate

2-3 April 2005

Firstpage

223

Lastpage

224

Abstract

In this paper we present the design and testing of a 32-channel full-customized CMOS biopotential sensor integrated circuit for sensing the propagation of action potentials in single nerve cell. The chip provides a satisfactory signal-to-noise ratio for neural signals with amplitudes in the range of 50-500 μV and frequency spectrum in the range of 20-2000 Hz. The prototype IC was fabricated by MOSIS using AMI´s 1.5 μm, double poly, double level metal CMOS technology.

Keywords

CMOS integrated circuits; bioelectric potentials; biomedical electronics; biomedical equipment; cellular biophysics; neurophysiology; 20 to 2000 Hz; 32-channel CMOS chip; MOSIS; action potentials; biopotential sensor; double level metal CMOS technology; extracellular neural signal recording; nerve cell; prototype IC fabrication; signal-to-noise ratio; Biosensors; CMOS integrated circuits; CMOS technology; Circuit testing; Extracellular; Frequency; Integrated circuit noise; Integrated circuit testing; Prototypes; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioengineering Conference, 2005. Proceedings of the IEEE 31st Annual Northeast

Print_ISBN

0-7803-9105-5

Electronic_ISBN

0-7803-9106-3

Type

conf

DOI

10.1109/NEBC.2005.1432001

Filename

1432001