NDLI: A VLSI Neural Monitoring System With Ultra-Wideband Telemetry for Awake Behaving Subjects

Content Provider	IEEE Xplore Digital Library
Author	Greenwald, E. Mollazadeh, M. Hu, C. Wei Tang Culurciello, E. Thakor, V.
Copyright Year	2007
Abstract	Long-term monitoring of neuronal activity in awake behaving subjects can provide fundamental information about brain dynamics for neuroscience and neuroengineering applications. Here, we present a miniature, lightweight, and low-power recording system for monitoring neural activity in awake behaving animals. The system integrates two custom designed very-large-scale integrated chips, a neural interface module fabricated in 0.5 μm complementary metal-oxide semiconductor technology and an ultra-wideband transmitter module fabricated in a 0.5 μm silicon-on-sapphire (SOS) technology. The system amplifies, filters, digitizes, and transmits 16 channels of neural data at a rate of 1 Mb/s. The entire system, which includes the VLSI circuits, a digital interface board, a battery, and a custom housing, is small and lightweight (24 g) and, thus, can be chronically mounted on small animals. The system consumes 4.8 mA and records continuously for up to 40 h powered by a 3.7-V, 200-mAh rechargeable lithium-ion battery. Experimental benchtop characterizations as well as in vivo multichannel neural recordings from awake behaving rats are presented here.
Sponsorship	IEEE Circuits and Systems Society IEEE Engineering in Medicine and Biology Society
Page Count	8
File Size	1204699
Starting Page	112
Ending Page	119
File Format	PDF
ISSN	19324545
Volume Number	5
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Batteries Receivers Transmitters Microcontrollers Very large scale integration Field programmable gate arrays Wireless communication wireless neural recording Biopotential amplifier digital telemetry electrocorticogram electroencephalogram headmounted systems local field potentials micropower instrumentation neural interface ultra-wideband telemetry
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Biomedical Engineering

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