Temes, “Theory and applications of incremental 16 converters (2004)

by J Markus, J Silva, G C
Venue:IEEE Trans. Circuits Syst. I
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This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS—I: REGULAR PAPERS 1 Incremental Data Converters at Low Oversampling

by Trevor C. Caldwell, Student Member, David A. Johns
"... Abstract—In this paper the use of incremental A/D converters with low oversampling ratios is investigated. Incremental A/D converters are able to achieve a higher SQNR than delta-sigma modulators at oversampling ratios below 4, allowing them to operate as higher bandwidth converters with medium reso ..."
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Abstract—In this paper the use of incremental A/D converters with low oversampling ratios is investigated. Incremental A/D converters are able to achieve a higher SQNR than delta-sigma modulators at oversampling ratios below 4, allowing them to operate as higher bandwidth converters with medium resolution. The impact of removing the input S/H, as well as analyzing their behaviour at an OSR as low as 1 is explored. An eighth-order cascaded incremental A/D converter is analyzed and shown as an example. Index Terms—Delta-sigma modulation, incremental analog-digital (A/D) converter, oversampled data conversion, switched capacitor circuits. I.