NDLI: An 8Hz, 0.1µW, 110+ dBs Sinh CMOS Bessel filter for ECG signals

Content Provider	IEEE Xplore Digital Library
Author	Kardoulaki, E.M. Glaros, K.N. Katsiamis, A.G. Drakakis, E.M.
Copyright Year	2009
Description	Author affiliation: Department of Bioengineering, Imperial College, South Kensington Campus, SW7 2AZ, UK (Kardoulaki, E.M.; Glaros, K.N.; Katsiamis, A.G.; Drakakis, E.M.)
Abstract	Hyperbolic sine (Sinh) CMOS filters are of inherent class-AB nature and offer high dynamic range at half the total capacitance value when compared against their pseudodifferential class-AB log-domain counterparts. This characteristic renders their theoretical and practical study valuable. Only a very limited number of CMOS Sinh filter topologies have been reported in the literature to date mostly due to the considerably increased mathematical complexity associated with their design. This paper presents the transistorlevel synthesis and investigates in detail the performance of a 3rd-order Sinh CMOS 8Hz low-pass filter of Bessel approximation suitable for ECG processing. The filter is based on recent progress made and has been designed in the commercially available 0.35µm AMS process. Its static power consumption amounts to 0.1µW while its dynamic range exceeds 110dBs. The new filter exhibits a flat group delay of less than 1% error up to 6Hz and good variability performance verified by means of Monte Carlo simulations. The suitability of the filter as part of an ECG front-end is confirmed by the processing of artificially generated ECG signals contaminated by various simulated noise sources and fed as signal inputs into the Cadence Design Framework.
Starting Page	14
Ending Page	17
File Size	965823
Page Count	4
File Format	PDF
ISBN	9781424458141
e-ISBN	9781424458165
DOI	10.1109/ICM.2009.5418668
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-19
Publisher Place	Morocco
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrocardiography Low pass filters Dynamic range Signal processing Capacitance Topology CMOS process Energy consumption Delay Signal generators
Content Type	Text
Resource Type	Article

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