Title :
Versatile CMOS bio-potential amplifier for high-density neural recording applications
Author_Institution :
Dept. of Biomed. Eng., Gachon Univ., Incheon, South Korea
Abstract :
A fully-integrated low-power and area-efficient bio-potential amplifier for high-density neural recording applications is presented. Using a self-biased amplifier structure, the bio-potential amplifier can operate at a lower power with a reduced active area. The Miller capacitance and area-efficient pad techniques harnessed in the amplifier also help to dramatically shrink the area of the amplifier. This implantable bio-potential amplifier was fabricated using a 0.35 μm CMOS process and was verified on a bench top by observing ex vivo biological signals.
Keywords :
CMOS analogue integrated circuits; amplifiers; bioelectric potentials; biomedical electronics; prosthetics; Miller capacitance technique; area-efficient pad technique; ex-vivo biological signal; fully-integrated low-power area-efficient biopotential amplifier; high-density neural recording application; implantable biopotential amplifier; self-biased amplifier structure; size 0.35 mum; versatile CMOS biopotential amplifier;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.3497
