Please use this identifier to cite or link to this item: https://doi.org/10.1109/JSSC.2009.2014707
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dc.titleA 1-V 450-nW fully integrated programmable biomedical sensor interface chip
dc.contributor.authorZou, X.
dc.contributor.authorXu, X.
dc.contributor.authorYao, L.
dc.contributor.authorLian, Y.
dc.date.accessioned2014-10-07T04:39:51Z
dc.date.available2014-10-07T04:39:51Z
dc.date.issued2009-04
dc.identifier.citationZou, X., Xu, X., Yao, L., Lian, Y. (2009-04). A 1-V 450-nW fully integrated programmable biomedical sensor interface chip. IEEE Journal of Solid-State Circuits 44 (4) : 1067-1077. ScholarBank@NUS Repository. https://doi.org/10.1109/JSSC.2009.2014707
dc.identifier.issn00189200
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/83315
dc.description.abstractThis paper presents a fully integrated programmable biomedical sensor interface chip dedicated to the processing of various types of biomedical signals. The chip, optimized for high power efficiency, contains a lownoise amplifier, a tunable bandpass filter, a programmable gain stage, and a successive approximation register analog-to-digital converter. A novel balanced tunable pseudo-resistor is proposed to achieve low signal distortion and high dynamic range under low voltage operations. A 53 nW, 30 kHz relaxation oscillator is included on-chip for low power consumption and full integration. The design was fabricated in a 0.35 μm standard CMOS process and tested at 1 V supply. The analog front-end has measured frequency response from 4.5 mHz to 292 Hz, programmable gains from 45.6 dB to 60 dB, input referred noise of 2.5 μvrms in the amplifier bandwidth, a noise efficiency factor (NEF) of 3.26, and a low distortion of less than 0.6% with full voltage swing at the ADC input. The system consumes 445 nA in the 31 Hz narrowband mode for heart rate detection and 895 nA in the 292 Hz wideband mode for ECG recording. © 2006 IEEE.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1109/JSSC.2009.2014707
dc.sourceScopus
dc.subjectBiomedical electronics
dc.subjectLow noise amplifier
dc.subjectLow-power circuit design
dc.subjectSensor interface
dc.subjectTunable pseudo-resistor
dc.typeConference Paper
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.doi10.1109/JSSC.2009.2014707
dc.description.sourcetitleIEEE Journal of Solid-State Circuits
dc.description.volume44
dc.description.issue4
dc.description.page1067-1077
dc.description.codenIJSCB
dc.identifier.isiut000265092300005
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