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A study on power consumption of modified noise-shaper architectures for Sigma-Delta DACs
Linköpings universitet, Institutionen för systemteknik, Elektroniksystem. Linköpings universitet, Tekniska högskolan.
Linköpings universitet, Institutionen för systemteknik, Elektroniksystem. Linköpings universitet, Tekniska högskolan.
Linköpings universitet, Institutionen för systemteknik, Elektroniksystem. Linköpings universitet, Tekniska högskolan.ORCID-id: 0000-0002-2144-6795
2011 (engelsk)Inngår i: Circuit Theory and Design (ECCTD), 2011, IEEE , 2011, s. 274-277Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

In this paper, modified, hybrid architectures for digital, oversampled sigma-delta digital-to-analog converters (ΣΔDACs) are explored in terms of signal-to-noise ratio (SNR) and power consumption. Two different architectures are investigated, both have variable configurations of the input and output word-length (i.e., the physical resolution of the DAC). A modified architecture, termed in this work as a composite architecture (CA), shows about 9 dB increase in SNR while maintaining a power-consumption at the same level as that of a so-called hybrid architecture (HA). The power estimation is done for modulators on the RTL level using a standard cell library in a 65-nm technology. The modulators are operated at a sampling frequency of 2 GHz.

sted, utgiver, år, opplag, sider
IEEE , 2011. s. 274-277
Emneord [en]
Composite architecture, DAC Complexity, Hybrid architecture, Modulator's Complexity, Noise Shaper, Sigma-Delta Modulator
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-86542DOI: 10.1109/ECCTD.2011.6043335ISBN: 978-1-4577-0617-2 (tryckt)ISBN: e-978-1-4577-0616-5 OAI: oai:DiVA.org:liu-86542DiVA, id: diva2:578668
Konferanse
20th European Conference on Circuit Theory and Design (ECCTD 2011), 29-31 August 2011, Linköping, Sweden
Tilgjengelig fra: 2012-12-18 Laget: 2012-12-18 Sist oppdatert: 2018-11-08

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