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Design considerations of a low-noise receiver front-end and its spiral coil for portable NMR screening
Diyang Zhao1; Ka-Meng Lei1; Pui-In Mak1; Man-Kay Law1; Rui P. Martins1,2
2014
Conference NameIEEE Asia Pacific Conference on Circuits and Systems (APCCAS)
Source Publication2014 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS)
Pages403-406
Conference Date17-20 Nov. 2014
Conference PlaceIshigaki, Japan
Abstract

This paper reports the co-design of a low-noise receiver front-end and its exciting-sensing coil for portable nuclear magnetic resonance (NMR) screening of chemical/biological droplets operating at 21.3MHz (0.5T magnet). To minimize the noise contribution of the receiver front-end and its coil compared to the induced signal, EM analysis is involved to optimize the geometry of the off-chip coil with the input-referred noise of the receiver front-end taken into account. By choosing a proper geometry of the coil, the resulted SNR of the receiver front-end was shown to be maximized with the dedicated input-referred noise of the receiver. Simulated in 180nm CMOS, the receiver front-end shows an input-referred noise as low as 920.11pV/VHz at 25.2mW of power, and the estimated die area is ∼2mm2.

DOIhttp://doi.org/10.1109/APCCAS.2014.7032805
URLView the original
Indexed BySCI
Language英语
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Theory & Methods ; Engineering, Electrical & Electronic
WOS IDWOS:000361128200098
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Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionINSTITUTE OF MICROELECTRONICS
DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.The State Key Laboratory of Analog and Mixed-Signal VLSI and FST ECE, University of Macau, Macao, China
2.On leave from Instituto Superior Técnico, Universidade de Lisboa, Portugal
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Diyang Zhao,Ka-Meng Lei,Pui-In Mak,et al. Design considerations of a low-noise receiver front-end and its spiral coil for portable NMR screening[C],2014:403-406.
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