Analysis of distortion in A/D converters by time-domain and code-density techniques

Author

Chiorboli, Giovanni ; Franco, Giovanni ; Morandi, Carlo

Author_Institution

Dipartimento di Ingegneria dell´´Inf., Parma Univ., Italy

Volume

45

Issue

1

fYear

1996

fDate

2/1/1996 12:00:00 AM

Firstpage

45

Lastpage

49

Abstract

Two new methods for measuring the total harmonic distortion of an A/D converter are described. One is based on time-domain analysis, the other on modified code density analysis. Experiments show that these methods give results comparable to the ones provided by FFT analysis. It is then shown, by both experiments on a flash converter and computer simulations, that the conventional code density analysis does not provide accurate signal-to-noise-plus-distortion ratio (SNDR) estimates at the highest frequencies, while the proposed methods do

Keywords

analogue-digital conversion; dynamic testing; electric distortion measurement; electron device noise; electronic equipment testing; harmonic distortion; time-domain analysis; A/D converters; FFT analysis; SNDR estimates; code density analysis; code-density techniques; computer simulations; flash converter; signal-to-noise-plus-distortion ratio; time-domain techniques; total harmonic distortion; Clocks; Frequency conversion; Frequency domain analysis; Frequency estimation; Harmonic distortion; Histograms; Performance analysis; Sampling methods; Testing; Time domain analysis;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.481310

Filename

481310