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El pdf del artículo es la versión pre-print.This letter presents a novel cascade ΣΔ modulator architecture that employs inter-stage resonation to increase its effective resolution compared to traditional cascades while presenting very relaxed output swing requirements and, subsequently, high robustness to non-linearities of the amplifiers. In addition, the use of loop filters based on Forward-Euler integrators, instead of Backward-Euler integrators as proposed in earlier approaches, simplifies the switched-capacitor implementation and makes the proposed architecture very suited for wideband A/D conversion.This work has been supported by the Spanish\udMinistry of Science and Education with support from the European Regional Development Fund under contract TEC2007-67247-C02-01/MIC.Peer reviewe

Resonation-based cascade modulator for broadband low-voltage A/D conversion