Publication Type |
Journal Article |
School or College |
College of Engineering |
Department |
Electrical & Computer Engineering |
Creator |
Harrison, Reid R. |
Title |
Low-power, low-noise CMOS amplifier for neural recording applications |
Date |
2002-01-01 |
Description |
There is a need among scientists and clinicians for lownoise, low-power biosignal amplifiers capable of amplifying signals in the mHz to kHz range while rejecting large dc offsets generated at the electrode-tissue interface. The advent of fully-implantable multielectrode arrays has created the need for fully-integrated micropower amplifiers. We designed and tested a novel bioamplifier that uses a MOS-bipolar pseudo-resistor to amplify signals down to the mHz range while rejecting large dc offsets. We derive the theoretical noise-power tradeoff limit - the noise efficiency factor - for this amplifier and demonstrate that our VLSI implementation approaches that limit. The resulting amplifier, built in a standard 1.5μm CMOS process, passes signals from 0.lmHz to 7.2kHz with an input-referred noise of 2.2μVrms and a power dissipation of 80μW while consuming 0.16mmz of chip area. |
Type |
Text |
Publisher |
Institute of Electrical and Electronics Engineers (IEEE) |
Journal Title |
IEEE International Symposium on Circuits and Systems |
Volume |
5 |
First Page |
197 |
Last Page |
200 |
Language |
eng |
Bibliographic Citation |
Harrison, R. R. (2002). Low-power, low-noise CMOS amplifier for neural recording applications. Proceedings of the 2002 IEEE International Symposium on Circuits and Systems (ISCAS 2002), 5, 197-200. |
Rights Management |
(c) 2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. |
Format Medium |
application/pdf |
Format Extent |
338,758 bytes |
Identifier |
ir-main,13995 |
ARK |
ark:/87278/s6c5446h |
Setname |
ir_uspace |
ID |
704752 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6c5446h |