A compensation technique for sigmadelta analog-to-digital converters (1997)

by D M Hummels, D Gerow, F H Irons
Venue:in Proceedings of the IEEE Instrumentation and Measurement Technology Conference
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High-Speed Multibit Delta-Sigma ADCs with On-Line Digital Error Correction

by Peter Kiss, Un-ku Moon, John T. Stonick, Gabor C. Temes , 2000
"... This report presents an on-line digital correction method for multibit delta-sigma ADCs. It originates from earlier works, but it works on line, and it is effective at low-OSR, i.e. high-speed, applications also. While the mismatch-shaping technique spreads and shapes the nonlinearity error ("dirt") ..."
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This report presents an on-line digital correction method for multibit delta-sigma ADCs. It originates from earlier works, but it works on line, and it is effective at low-OSR, i.e. high-speed, applications also. While the mismatch-shaping technique spreads and shapes the nonlinearity error ("dirt"), this digital correction cancels it out ("vacuum-cleaning" versus "sweeping"), so it is more effective.