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2011 | OriginalPaper | Buchkapitel

Very Low OSR Sigma-Delta Converters

verfasst von : Trevor C. Caldwell

Erschienen in: Analog Circuit Design

Verlag: Springer Netherlands

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Abstract

This chapter investigates ΣΔ modulators and incremental A/D converters at low oversampling ratios. Both architectures have advantages at reduced OSRs; incremental A/D converters are able to achieve higher SQNR than ΣΔ modulators at oversampling ratios below 8, and ΣΔ modulators can attain better thermal noise performance than pipeline A/D converters at low OSRs. Both architectures are analyzed and a sample 8th-order cascaded architecture is demonstrated for both topologies.

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Metadaten
Titel
Very Low OSR Sigma-Delta Converters
verfasst von
Trevor C. Caldwell
Copyright-Jahr
2011
Verlag
Springer Netherlands
DOI
https://doi.org/10.1007/978-94-007-0391-9_8

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