Volume 16, Number 6

Analysis of Random Distortions in the Elements of the Basic Cell for an Analog-Digital Pipelined Converter

  Authors

Ricardo Francisco Martinez Gonzalez, Tecnologico Nacional de Mexico / IT Veracruz, Mexico

  Abstract

This paper presents an analysis of random distortions in the elements of the basic cell for an analog-digital pipelined converter. Pipelined converters are popular for their high sampling rates and resolution ranges. Each basic cell has a few-bit digital-analog converter connected to its output with a digital-to-analog converter to compare the input signal. This study aims to analyze the effects of random variations in the converters' elements. The proposed system is designed, with experiments conducted to observe the effects of distortions. The results of simulated architecture and distortion tests are presented, and the reached conclusions are presented in the fourth section.

The basic cell used to build the converter is described in Equation 1, which describes the cell's operation. Six cells cascade-connected were used to construct the converter, with the input of the first block being the input and its output connected to the input of the second station. The true output of the converter is constructed by each of the output bits of each cell, with the bit of the first station being the most significant bit until reaching the output bit in the last cell.

  Keywords

Analog-digital converter, basic cell, output signal analysis.