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Design of an analog front-end for ambulatory biopotential measurement systems
KTH, School of Information and Communication Technology (ICT), Electronic Systems. Fudan University, Shanghai, China.
2010 (English)In: Journal of Semiconductors, ISSN 1674-4926, Vol. 31, no 10, 105004- p.Article in journal (Refereed) Published
Abstract [en]

A continuously tunable gain and bandwidth analog front-end for ambulatory biopotential measurement systems is presented. The front-end circuit is capable of amplifying and conditioning different biosignals. To optimize the power consumption and simplify the system architecture, the front-end only adopts two-stage amplifiers. In addition, careful design eliminates the need for chopping circuits. The input-referred noise of the system is only 1.19 μVrms (0.48-2000 Hz). The chip is fabricated via a SMIC 0.18 μm CMOS process. Although the power consumption is only 32.1 μW under a 3 V voltage supply, test results show that the chip can successfully extract biopotential signals.

Place, publisher, year, edition, pages
2010. Vol. 31, no 10, 105004- p.
Keyword [en]
Analog front-end, Biopotential measurement system, Low-noise, Low-power
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:kth:diva-149583DOI: 10.1088/1674-4926/31/10/105004Scopus ID: 2-s2.0-78649400667OAI: oai:DiVA.org:kth-149583DiVA: diva2:740690
Note

QC 20140826

Available from: 2014-08-26 Created: 2014-08-25 Last updated: 2014-08-26Bibliographically approved

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