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A low-noise front-end for multiplexed ENG recording using CMOS technology


Reference:

Taylor, J. and Rieger, R., 2011. A low-noise front-end for multiplexed ENG recording using CMOS technology. Analog Integrated Circuits and Signal Processing, 68 (2), pp. 163-174.

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Official URL:

http://dx.doi.org/10.1007/s10470-011-9598-5

Abstract

Multi-electrode cuffs have been proposed as a means for the parallel recording of naturally-occurring neural signals. Compared to a conventional tripole cuff providing a single channel signal, additional information about the velocity and direction of nerve signals can be extracted from the multi-electrode recordings. Moreover, interference suppression is improved and overall power consumption reduced, as the analysis shows. In this paper a new recording system is proposed, each channel of which consists of a low-noise preamplifier employing lateral bipolar transistors to provide an impedance match to the tissue and a path to ground for the switching currents of a single high-gain amplifier, which is multiplexed between the channels. The proposed system provides low-noise, low-power operation and practically identical channel gains and is suitable for integration in a larger CMOS-based system.

Details

Item Type Articles
CreatorsTaylor, J.and Rieger, R.
DOI10.1007/s10470-011-9598-5
DepartmentsFaculty of Engineering & Design > Electronic & Electrical Engineering
RefereedYes
StatusPublished
ID Code23032
Additional Information15th IEEE International Conference on Electronics, Circuits and Systems Location: 31 August - 3 September 2008, Malta.

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