DAC Waveform Effects in CT Incremental ΣΔ ADCs for Biosensor Applications
2013 (English)In: 2013 IEEE 11th International New Circuits and Systems Conference, NEWCAS 2013, IEEE conference proceedings, 2013, 6573569- p.Conference paper (Refereed)
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.
Feedback DACs, Continuous-Time Sigma-Delta ADCs, Incremental Sigma-Delta ADCs
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-123094DOI: 10.1109/NEWCAS.2013.6573569ISI: 000327392600008ScopusID: 2-s2.0-84883486223ISBN: 978-147990618-5OAI: oai:DiVA.org:kth-123094DiVA: diva2:624597
2013 IEEE 11th International New Circuits and Systems Conference, NEWCAS 2013; Paris; France; 16 June 2013 through 19 June 2013
FunderSwedish Research Council
QC 201307182013-06-022013-06-022014-01-14Bibliographically approved