A Wireless Implantable Microsystem for Multichannel Neural Recording

被引：56

作者：

Sodagar, Amir M. ^{[1
,2
]}

Wise, Kensall D. ^{[1
]}

Najafi, Khalil ^{[1
]}

机构：

[1] Univ Michigan, Res Ctr Wireless Integrated Microsyst, Ann Arbor, MI 48109 USA

[2] KN Toosi Univ Technol, Dept Elect & Comp Engn, Integrated Cucuits & Syst Lab, Tehran, Iran

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2009年 / 57卷 / 10期

基金：

美国国家卫生研究院;

关键词：

Biomedical electronics; mixed-signal CMOS circuits; neural recording; telemetry powering; wireless interfacing; MICROELECTRODES; INTERFACE; CIRCUIT; ARRAY;

D O I：

10.1109/TMTT.2009.2029957

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An implantable microsystem capable of recording neural activity simultaneously oil 64 channels is reported. This system receives power and setup data through an inductive wireless link, and wirelessly transmits the recorded neural information to an external interface. The microsystem is capable of detecting spike occurrences, as well as digitizing the spike waveforms on any channel with 8-bit resolution. Signals are amplified by 60 dB with a programmable bandwidth from < 100 Hz to 10 kHz. The input-referred noise is 8 mu V-rms. The channel scan rate for spike detection is 62.5 kS/s using a 2-MHz clock. The system dissipates 14.4 mW at 1.8 V, weighs 275 mg. and measures 1.4 cm x 1.55 cm.

引用

页码：2565 / 2573

页数：9

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