Desenvolvimento de conversor A/D com topologia paralela.

Abstract

With the growing demand for faster A/D converters ( analog / digital), this paper aims to describe the development stages of an A/D converter with flash topology, which has high conversion speed and its most limiting factor (size of the integrated circuit) decreases with each new generation of integrated circuit manufacturing technology. The converter is designed in 180nm technology and has an output with three bits. Development stages of this work are summarized to the preparation of a basic electric diagram from discrete components; reconstruct those discrete components in transistorslevel circuits (validating them through simulations) and development of an A/D converter in integrated circuit, presenting the results obtained in the simulation. The developed converter was capable of converting the analog voltage values applied to the input to the outputs binary values.