A 16-BIT SWITCHED-CAPACITOR SIGMA-DELTA MODULATOR MATLAB MODEL EXPLOITING TWO-STEP QUANTIZATION PROCESS

Lukas Fujcik, Radimir Vrba, Miroslav Sveda

Abstract

This paper presents a novel architecture of high-order single-stage sigma-delta (ΣΔ) converter for sensor measurement. The two-step quantization technique was utilized to design a novel architecture of ΣΔ modulator. The time steps are interleaved to achieve resolution improvement without decreasing of conversion speed. This technique can be useful for low oversampling ratio. The novel architecture was designed to obtain high dynamic range of input signal, high signal-to-noise ratio and high reliability. The proposed architecture of switched-capacitor (SC) ΣΔ modulator was simulated with blocks containing nonidealities, such as sampling jitter, noise, and operational amplifier parameters (white noise, finite dc gain, finite bandwidth, slew rate and saturation voltages). The novel architecture of SC ΣΔ modulator with two-step quantization process was designed and simulated in MATLAB SIMULINK.

References

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Paper Citation


in Harvard Style

Fujcik L., Vrba R. and Sveda M. (2006). A 16-BIT SWITCHED-CAPACITOR SIGMA-DELTA MODULATOR MATLAB MODEL EXPLOITING TWO-STEP QUANTIZATION PROCESS . In Proceedings of the Third International Conference on Informatics in Control, Automation and Robotics - Volume 3: ICINCO, ISBN 978-972-8865-61-0, pages 142-147. DOI: 10.5220/0001207901420147


in Bibtex Style

@conference{icinco06,
author={Lukas Fujcik and Radimir Vrba and Miroslav Sveda},
title={A 16-BIT SWITCHED-CAPACITOR SIGMA-DELTA MODULATOR MATLAB MODEL EXPLOITING TWO-STEP QUANTIZATION PROCESS},
booktitle={Proceedings of the Third International Conference on Informatics in Control, Automation and Robotics - Volume 3: ICINCO,},
year={2006},
pages={142-147},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001207901420147},
isbn={978-972-8865-61-0},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Third International Conference on Informatics in Control, Automation and Robotics - Volume 3: ICINCO,
TI - A 16-BIT SWITCHED-CAPACITOR SIGMA-DELTA MODULATOR MATLAB MODEL EXPLOITING TWO-STEP QUANTIZATION PROCESS
SN - 978-972-8865-61-0
AU - Fujcik L.
AU - Vrba R.
AU - Sveda M.
PY - 2006
SP - 142
EP - 147
DO - 10.5220/0001207901420147