Proceedings ArticleDOI
A Straightforward Design Methodology for Multi-bit Continuous Time Delta Sigma Modulators
Hossein Shamsi,S. Radiom,Omid Shoaei,Reza Lotfi +3 more
- Vol. 2, pp 409-413
TLDR
A new design methodology for high order multi-bit continuous time Delta Sigma modulators is proposed and it provides a crystal-clear argument for the selection of the coefficients of the modulator.Abstract:
In this paper a new design methodology for high order multi-bit continuous time Delta Sigma modulators is proposed. It provides a crystal-clear argument for the selection of the coefficients of the modulator. The strategy of this paper is to design the modulator in z-domain and then to convert the modulator to s-domain.read more
Citations
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Dissertation
Contribution à la conception de convertisseurs analogique numérique delta sigma à temps continu, des spécifications à l'implémentation. Application à un standard de télécommunication large bande.
TL;DR: In this article, a travail de recherche porte sur la conversion analogique numerique delta sigma a temps continu passe-bas, and plus particulierement sur les difficultes de realisation of ce type of convertisseur.
Proceedings ArticleDOI
Robust NTF design for continuous time Sigma-Delta modulators
Mahdi Mirzaei,Hossein Shamsi +1 more
TL;DR: In this article, a novel empirical-analytical study is performed on the design of low power and robust continuous time Sigma-Delta modulators, which makes the modulators more stable against the excess loop delay of the feedback loop.
Journal ArticleDOI
Digital-tuning of RC time constant in Multi-Bit continuous-time Delta-Sigma modulators
TL;DR: Analytic formulas and MATLAB simulations prove that the proposed method compensates the detrimental effects of the imprecise RC time constant appropriately.
Journal ArticleDOI
Design of a robust NTF for continuous-time ΔΣ modulators
Mahdi Mirzaei,Hossein Shamsi +1 more
TL;DR: An analytical-empirical method is presented that improves the robustness of the modulator against imperfections such as excess loop delay and unity-gain bandwidth of the opamps.
References
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Book
Understanding Delta-Sigma Data Converters
TL;DR: This chapter discusses the design and simulation of delta-sigma modulator systems, and some of the considerations for implementation considerations for [Delta][Sigma] ADCs.
Book
Delta-sigma data converters : theory, design, and simulation
TL;DR: Delta-Sigma Data Converters provides comprehensive coverage of low and high-order single-bit, bandpass, continuous-time, multistage modulators as well as advanced topics, including idle-channel tones, stability, decimation and interpolation filter design, and simulation.
Journal ArticleDOI
Excess loop delay in continuous-time delta-sigma modulators
TL;DR: In this article, the effect of excess loop delay on modulator dynamic range is studied through simulation for the standard double-integration (low pass) CT modulator and its equivalent fourth-order f/sub s/4 band pass circuit.
Journal ArticleDOI
A continuous-time sigma-delta modulator with 88-dB dynamic range and 1.1-MHz signal bandwidth
TL;DR: In this paper, a third-order continuous-time /spl Sigma/spl Delta/ modulator with 5-bit internal quantization was realized in a 0.5-/spl mu/m double-poly triple-metal CMOS technology, with a chip area of 2.4 mm/sup 2/.
Journal ArticleDOI
A 70-mW 300-MHz CMOS continuous-time /spl Sigma//spl Delta/ ADC with 15-MHz bandwidth and 11 bits of resolution
Susana Paton,A. Di Giandomenico,Luis Hernandez,Andreas Wiesbauer,Thomas Pötscher,Martin Clara +5 more
TL;DR: A wide-bandwidth continuous-time sigma-delta ADC is implemented in a 0.13-/spl mu/m CMOS circuit that achieves a dynamic range of 11 bits over a bandwidth of 15 MHz.