Publication detail

MATLAB Model of 16-bit Switched-capacitor Sigma-delta Modulator with Two-step Quantization Process

L. Fujcik,R. Vrba,

Original Title

MATLAB Model of 16-bit Switched-capacitor Sigma-delta Modulator with Two-step Quantization Process

Type

conference paper

Language

English

Original Abstract

This paper presents a novel architecture of highorder single-stage sigma-delta (Σ∆) converter for sensor measurement. The two-step quantization technique was utilized to design a novel architecture of Σ∆ 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) Σ∆ 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).

Keywords

sigma-delta modulation, quantization

Authors

L. Fujcik,R. Vrba,

RIV year

2006

Released

1. 1. 2006

Publisher

Suvisoft Oy ltd., Finland

ISBN

2-908849-17-8

Book

Second International Symposium on Communications, Control and Signal Processing, ISCCSP 2006

Pages from

87

Pages to

90

Pages count

4

BibTex

@inproceedings{BUT18706,
  author="Lukáš {Fujcik}",
  title="MATLAB Model of 16-bit Switched-capacitor Sigma-delta Modulator with Two-step Quantization Process",
  booktitle="Second International Symposium on Communications, Control and Signal Processing, ISCCSP 2006",
  year="2006",
  pages="4",
  publisher="Suvisoft Oy ltd., Finland",
  isbn="2-908849-17-8"
}