A 16-bit Switched-Capacitor Sigma-Delta Modulator Matlab Model Exploiting Two-Step Quantization Process

A 16-bit Switched-Capacitor Sigma-Delta Modulator Matlab Model Exploiting Two-Step Quantization Process

Paper in proceedings (conference paper)

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 of novel architecture of sigma-delta; 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.

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 of novel architecture of sigma-delta; 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.

sigma-delta modulator, switched-capacitor technology, quantization process

sigma-delta modulator, switched-capacitor technology, quantization process

Lukas Fujcik, Radimir Vrba, Miroslav Sveda

01.01.2006

Juan Andrade Cetto

972-8865-61-9

Proceedings Signal Processing, Systems Modeling and Control

142

6