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Very low-noise ENG amplifier system using CMOS technology


Reference:

Rieger, R., Schuettler, M., Pal, D., Clarke, C., Langlois, P., Taylor, J. and Donaldson, N., 2006. Very low-noise ENG amplifier system using CMOS technology. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 14 (4), pp. 427-437.

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Abstract

In this paper, we describe the design and testing of a system for recording electroneurographic signals (ENG) from a multielectrode nerve cuff (MEC). This device, which is an extension of the conventional nerve signal recording cuff, enables ENG to be classified by action potential velocity. In addition to electrical measurements, we provide preliminary in vitro data obtained from frogs that demonstrate the validity of the technique for the first time. Since typical ENG signals are extremely small, on the order of 11 mu V, very low-noise, high-gain amplifiers are required. The ten-channel system we describe was realized in a 0.8 mu m CMOS technology and detailed measured results are presented. The overall gain is 10 000 and the total input-referred root mean square (rms) noise in a bandwidth 1 Hz-5 kHZ is 291 nV. The active area is 12 mm(2) and the power consumption is 24 mW from 2.5 V power supplies.

Details

Item Type Articles
CreatorsRieger, R., Schuettler, M., Pal, D., Clarke, C., Langlois, P., Taylor, J. and Donaldson, N.
DOI10.1109/tnsre.2006.886731
DepartmentsFaculty of Engineering & Design > Electronic & Electrical Engineering
RefereedYes
StatusPublished
ID Code5785
Additional InformationID number: ISI:000242951300004

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