DocumentCode :
1618760
Title :
Real-time equalization of A/D converter nonlinearities
Author :
Moulin, D.
Author_Institution :
MITRE Corp., Bedford, MA, USA
fYear :
1989
Firstpage :
262
Abstract :
A report is presented on a design, implemented with current technology, of a real-time compensator circuit. The author demonstrates the feasibility of using the phase-plane approach for real-time equalization of analog nonlinearities in the digital domain. It is shown that such compensation schemes have the potential to improve performance by removing slew-rate-dependent errors in the critical sample-hold circuits in sampling A/D converters. Linearity, as measured by the SFDR (spurious-free dynamic range), improved by more than 2 b over most of the Nyquist bandwidth for a 12-b, 5-MSps state-of-the-art A/D converter
Keywords :
analogue-digital conversion; equalisers; error compensation; real-time systems; A/D converter nonlinearities; Nyquist bandwidth; analog nonlinearities; phase-plane approach; real-time compensator circuit; real-time equalization; sample-hold circuits; sampling ADC; slew-rate-dependent errors; spurious-free dynamic range; Bandwidth; Circuits; Discrete Fourier transforms; Dynamic range; Equations; Linearity; Power harmonic filters; Power system harmonics; Sampling methods; Spectral analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems, 1989., IEEE International Symposium on
Conference_Location :
Portland, OR
Type :
conf
DOI :
10.1109/ISCAS.1989.100341
Filename :
100341
Link To Document :
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