UM
A frequency-translation technique for low-noise ultra-low-cutoff lowpass filtering
Pui-In Mak; Chon-Teng Ma; R. P. Martins
2012-07-01
Source PublicationAnalog Integrated Circuits and Signal Processing
ISSN09251030 15731979
Volume72Issue:1Pages:265-269
Abstract

Presented is a frequency-translation technique for compact realization of a low-noise lowpass filter (LPF) for biopotential acquisition systems. It is by chopper-stabilizing a bandpass filter (BPF) to obtain an ultra-low-cutoff lowpass response. This technique not only removes the BPF's flicker noise and dc-offset, but also adds clock-based gain-bandwidth tunability and saves chip area because of highly relaxed time constants. A 1.4 to 15-Hz 2nd-order OTA-C ladder LPF designed in a 90-nm CMOS process verifies the merits of the technique with respect to the prior art. © 2012 Springer Science+Business Media, LLC.

KeywordLowpass Filter Bandpass Filter Frequency Translation Cmos
DOIhttp://doi.org/10.1007/s10470-012-9849-0
URLView the original
Indexed BySCI
Language英语
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Hardware & Architecture ; Engineering, Electrical & Electronic
WOS IDWOS:000304874300029
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorPui-In Mak
AffiliationState-Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macao, People’s Republic of China
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Pui-In Mak,Chon-Teng Ma,R. P. Martins. A frequency-translation technique for low-noise ultra-low-cutoff lowpass filtering[J]. Analog Integrated Circuits and Signal Processing,2012,72(1):265-269.
APA Pui-In Mak,Chon-Teng Ma,&R. P. Martins.(2012).A frequency-translation technique for low-noise ultra-low-cutoff lowpass filtering.Analog Integrated Circuits and Signal Processing,72(1),265-269.
MLA Pui-In Mak,et al."A frequency-translation technique for low-noise ultra-low-cutoff lowpass filtering".Analog Integrated Circuits and Signal Processing 72.1(2012):265-269.
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