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DAC Waveform Effects in CT Incremental ΣΔ ADCs for Biosensor Applications
KTH, School of Information and Communication Technology (ICT), Integrated Devices and Circuits.ORCID iD: 0000-0002-4691-2318
KTH, School of Information and Communication Technology (ICT), Integrated Devices and Circuits.
KTH, School of Information and Communication Technology (ICT), Integrated Devices and Circuits.ORCID iD: 0000-0003-3802-7834
2013 (English)In: 2013 IEEE 11th International New Circuits and Systems Conference, NEWCAS 2013, IEEE conference proceedings, 2013, 6573569- p.Conference paper, Published paper (Refereed)
Abstract [en]

Incremental sigma-delta (IΣΔ) analog-to-digital converters (ADCs), which are essentially ΣΔ ADCs with periodic resetting, are well suited for low-power low-speed biosensor applications. In recent years, the potential advantage in terms of power dissipation of continuous-time (CT) IΣΔ ADCs have been explored. This paper analyzes the impact of feedback digital-to-analog converters (DACs) on the performance of CT IΣΔ ADCs. Different feedback DAC schemes are firstly analyzed and then evaluated by employing them in a 3rd order single-bit CT IΣΔ ADC. Simulation results are discussed considering the trade-off between the timing error sensitivity and the power consumption, thereby offering a reference for selecting a power efficient feedback DAC scheme.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2013. 6573569- p.
Keyword [en]
Feedback DACs, Continuous-Time Sigma-Delta ADCs, Incremental Sigma-Delta ADCs
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-123094DOI: 10.1109/NEWCAS.2013.6573569ISI: 000327392600008Scopus ID: 2-s2.0-84883486223ISBN: 978-147990618-5 (print)OAI: oai:DiVA.org:kth-123094DiVA: diva2:624597
Conference
2013 IEEE 11th International New Circuits and Systems Conference, NEWCAS 2013; Paris; France; 16 June 2013 through 19 June 2013
Funder
Swedish Research Council
Note

QC 20130718

Available from: 2013-06-02 Created: 2013-06-02 Last updated: 2014-01-14Bibliographically approved

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