A 0.7V 7-to-10bit 0-to-2MS/s Flexible SAR ADC for Ultra Low-Power Wireless Sensor Nodes

P.J.A. Harpe, G. Dolmans, K.J.P. Philips, H.W.H. Groot, de

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25 Citaten (Scopus)
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Samenvatting

This paper presents a flexible SAR ADC in 90nm CMOS for wireless sensor nodes. By supporting resolutions from 7 to 10bit and sample rates from DC to 2MS/s, this design can be used for a variety of applications such as sensor interfacing and receiver frontends. Flexibility is achieved by a reconfigurable comparator and a reconfigurable DAC. Compared to prior art, this work substantially improves power-efficiency and enables low-voltage operation by employing a pseudo-differential DAC switching scheme, offset compensation and simplified asynchronous logic control. The measured chip achieves power-efficiencies of 2.8–6.6fJ/conversion-step at 2MS/s and 0.7V supply. The FOM is maintained down to kS/s-range as the leakage is only 2nW.
Originele taal-2Engels
TitelProceedings of the 42nd European Solid-State Circuits Conference (ESSCIRC 2012), 17-21 September 2012, Bordeaux, France
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
Pagina's373-376
DOI's
StatusGepubliceerd - 2012
Evenement38th European Solid-State Circuits Conference (ESSCIRC 2012) - Bordeaux Convention Center, Bordeaux, Frankrijk
Duur: 17 sep 201221 sep 2012
Congresnummer: 38

Congres

Congres38th European Solid-State Circuits Conference (ESSCIRC 2012)
Verkorte titelESSCIRC 2012
LandFrankrijk
StadBordeaux
Periode17/09/1221/09/12
AnderThe 38th European Solid-State Circuits Conference (ESSCIRC 2012) 17-21 September 2012, Bordeaux, France,

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Citeer dit

Harpe, P. J. A., Dolmans, G., Philips, K. J. P., & Groot, de, H. W. H. (2012). A 0.7V 7-to-10bit 0-to-2MS/s Flexible SAR ADC for Ultra Low-Power Wireless Sensor Nodes. In Proceedings of the 42nd European Solid-State Circuits Conference (ESSCIRC 2012), 17-21 September 2012, Bordeaux, France (blz. 373-376). Piscataway: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ESSCIRC.2012.6341363