Title :
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
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;
Conference_Titel :
Bioengineering Conference, 2005. Proceedings of the IEEE 31st Annual Northeast
Print_ISBN :
0-7803-9105-5
Electronic_ISBN :
0-7803-9106-3
DOI :
10.1109/NEBC.2005.1432001
