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titleType: Subtitle
title: Research of delta-sigma modulators with noise-coupling
Creators: name: Ð¡Ð°ÑÑÑÐµÐ², ÐÐ»Ð°Ð´Ð¸ÑÐ»Ð°Ð²
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð°Ð½Ð°Ð»Ð¾Ð³Ð¾-ÑÐ¸ÑÑÐ¾Ð²Ð¾Ð¹ Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»Ñ
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analog to digital converter
delta-sigma modulator
noise-shaping
oversampling
noise-coupling
feedforward structure
active adder
sc integrator

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description: The subject of the graduate qualification work is âResearch of delta-sigma modulators with noise-couplingâ. The given work is devoted to the study of delta-sigma modulators with additional noise coupling. The aim of the work is to design and simulate a delta-sigma modulator with additional noise coupling and to compare its characteristics with classical structures. Modeling was carried at the level of functional diagrams in Matlab/Simulink and at the transistor level in Cadence Virtuoso. As a result of the work, three following delta-sigma modulators were designed and modeled: a second-order modulator with an active adder, a third-order modulator with a passive adder and a second-order modulator with additional noise coupling. Obtained characteristics of modulators were analyzed. The results of this work can be applied to design a delta-sigma ADC. The advantage of delta-sigma modulators using additional noise coupling over classical structures was demonstrated.