Paper Info
Title
Modeling of EMI propagation in switched-capacitor ΣΔ A/D converter
Abstract
In this communication a model of the propagation of electromagnetic interference (EMI) in sigma-delta A/D converters is developed. After a discussion about the EMI injection points, the model takes into consideration EMI injected into the feedback path and coming from the voltage reference circuit. The model reveals that EMI are demodulated, thanks to a multiplication with the output signal, and, under certain circumstances, may fall into the baseband thus affecting the overall signal-to-noise ratio (SNR) and the precision of the A/D converter. The model is validated by means of simulation and excellent agreement is obtained between expected data and simulation results.
Year
DOI
Venue
2008
10.1109/ICECS.2008.4675084
St. Julien's
Keywords
Field
DocType
electromagnetic interference,sigma-delta modulation,switched capacitor networks,EMI propagation,electromagnetic interference,sigma-delta A/D converters,signal-to-noise ratio,switched-capacitor SigmaDelta A/D converter,voltage reference circuit
Baseband,Computer science,Electromagnetic interference,Signal-to-noise ratio,Voltage reference,Control engineering,Converters,Electronic engineering,Modulation,Switched capacitor,Electrical engineering,EMI
Conference
ISBN
Citations 
PageRank 
978-1-4244-2182-4
0
0.34
References 
Authors
1
2
Name
Order
Citations
PageRank
David Cristaldi100.34
Gianluca Giustolisi25014.17