Resolution-enhanced sturdy MASH delta-sigma modulator for wideband low-voltage applications
Liang Qi1; Sai-Weng Sin1; Seng-Pan U1,2; Rui Paulo Martins1,3
2015
Source PublicationElectronics Letters
ISSN00135194
Volume51Issue:14Pages:1061-1063
Abstract

A resolution-enhanced sturdy multi-stage noise shaping (MASH) delta-sigma modulator is presented. By employing the Leslie-Singh architecture in the first stage and an appropriate second stage digital filtering, the proposed structure could achieve much higher resolution [>80 dB signal-to-quantisation noise ratio] when compared with a traditional sturdy MASH, at a lower oversampling ratio (e.g. 8X). Interestingly, the mismatch between digital and analogue transfer functions is inherently shaped so that the structure is not sensitive to opamp finite gain error. Both these properties make the proposed structure suitable for wideband low-voltage applications. Behavioural simulations are presented to demonstrate the effectiveness of the proposed structure when compared with the prior art of its high performance delta-sigma counterparts.

DOIhttp://doi.org/10.1049/el.2015.1655
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000357314600010
Fulltext Access
Citation statistics
Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.State-Key Laboratory of Analog and Mixed-Signal VLSI and Department of ECE, FST, University of Macau, Macao, People’s Republic of China
2.Synopsys Macau Ltd, Macao, China
3.On leave from Instituto Superior Técnico (IST)/ Universidade de Lisboa, Lisboa, Portugal
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Liang Qi,Sai-Weng Sin,Seng-Pan U,et al. Resolution-enhanced sturdy MASH delta-sigma modulator for wideband low-voltage applications[J]. Electronics Letters,2015,51(14):1061-1063.
APA Liang Qi,Sai-Weng Sin,Seng-Pan U,&Rui Paulo Martins.(2015).Resolution-enhanced sturdy MASH delta-sigma modulator for wideband low-voltage applications.Electronics Letters,51(14),1061-1063.
MLA Liang Qi,et al."Resolution-enhanced sturdy MASH delta-sigma modulator for wideband low-voltage applications".Electronics Letters 51.14(2015):1061-1063.
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