Simulações de Medidas de Desempenho de Conversores Analógico-Digitais (Performance Measurement Simulations for Analog-to-Digital Converters)

Luís Geraldo Pedroso Meloni (meloni@decom.fee.unicamp.br), Karlo Gusso Lenzi (klenzi@cpqd.com.br)


Universidade Estadual de Campinas
This paper appears in: Revista IEEE América Latina

Publication Date: Jan. 2012
Volume: 10,   Issue: 1 
ISSN: 1548-0992


Abstract:
This paper concisely presents several common used techniques for measuring the dynamic performance of analog-to-digital conversion. Details about very critical tasks concerning spectral analysis are focused, showing examples to better justify the use of such techniques. It is shown how important is to precisely define the input frequency used for spectral analysis to enhance precision of results. This paper also proposes that the use of window deconvolution eases computation of the harmonics for performance analysis as compared with other commonly used techniques. The most relevant metrics applied for measuring performance are reviewed and demonstrated as a self-contained study. Simulation results are confronted with a commercial analog-to-digital converter.

Index Terms:
ADC performance, deconvolution, ENOB, SINAD, SFDR   


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