Detail výsledku
An algorithmic A/D switched-current converter for smart signal digitization with self-test features
Večeřa Ivo, Ing.
Practical aspects of the implementation of test circuitry into CMOS design of an analogue-to-digital converter are discussed. A design-for-test in switched-current mode circuitry is focused. As an example, analysis of an A/D converter designed in switched-current technique is used for data sampling. The problems concerned with controllability and observability of internal nodes are discussed. A pipelined switched-current A/D converter designed in 0.6 m CMOS technology is described. Current mode enables operation down to 3 V thus is suitable for battery powered applications. The system integrates band-gap reference and independent supervisory circuit with 1% accuracy. Current consumption in sleep mode is less than 1 A. A/D converter is prepared to meet 1452.2 specifications. The models were used to verify theoretical proposals by means of SPICE simulations.
@article{BUT41732,
author="Radimír {Vrba} and Ivo {Večeřa}",
title="An algorithmic A/D switched-current converter for smart signal digitization with self-test features",
journal="MEASUREMENT",
year="2004",
volume="35",
number="2",
pages="8",
issn="0263-2241"
}