NDLI: 4-Channel asynchronous bio-potential recording system

Content Provider	IEEE Xplore Digital Library
Author	Wei Tang Chenxi Huang Dongsoo Kim Martini, B. Culurciello, E.
Copyright Year	2010
Description	Author affiliation: Electrical Engineering Department, Yale University, New Haven CT 06520 (Wei Tang; Chenxi Huang; Dongsoo Kim; Martini, B.; Culurciello, E.)
Abstract	We present a 4-channel bio-potential recording system using asynchronous delta analog-to-digital converter. The system is designed to reduce the amount of data in neuro-physiological sensors. The circuit includes low-power low-noise amplifiers with asynchronous delta modulators. The analog front end offers a gain of 53dB within bandwidth of 200Hz-20kHz. In this asynchronous data converter, the minimum input-referred delta resolution is 4μV. The input-referred rms noise is 2μV. T h e system was fabricated with AMI 0.5μm CMOS technology. The chip size is 1.5mm by 1.5mm. The power consumption of the 4-channel system with 3.3V supply is 118.8μW in static state and 501.6μW with 240kbps data conversion rate. A graphic user interface was developed to monitor the transmitted signal in real time.
Starting Page	953
Ending Page	956
File Size	545969
Page Count	4
File Format	PDF
ISBN	9781424453085
DOI	10.1109/ISCAS.2010.5537389
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-30
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	CMOS technology Analog-digital conversion Biosensors Sensor systems Low-noise amplifiers Delta modulation Gain Bandwidth Circuit noise Ambient intelligence
Content Type	Text
Resource Type	Article

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