Resonation-based cascade ΣΔ modulator for broadband low-voltage A/D conversion
نویسنده
چکیده
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.
منابع مشابه
Resonation-based Cascade ΣΔ Modulators for High-Linearity Broadband A/D Conversion
This paper presents two new architectures of cascade ΣΔ modulators that, based on the use of resonation, allow to increase the effective resolution compared to previously reported topologies whereas keeping relaxed output swing and 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 ...
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