Title

32-Channel full customized CMOS biosensor chip for extracellular neural signal recording

Document Type

Conference Proceeding

Date of Original Version

12-1-2005

Abstract

In this paper we present a full-customized CMOS biosensor integrated circuit (IC) design, layout, and implementation techniques for extracellular multichannel action potential recording applications. Schematics and simulation data for each of the sub-circuit macros are presented which includes contact sensors, unity gain buffer, variable gain amplifier and logic control unit. 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. © 2005 IEEE.

Publication Title

2nd International IEEE EMBS Conference on Neural Engineering

Volume

2005

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