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Digital Correction for Multibit D/A Converters

TitleDigital Correction for Multibit D/A Converters
Publication TypeConference Paper
Year of Publication2005
AuthorsCeballos, J. L., J. Steensgaard, and G. C. Temes
Conference NameXI IBERCHIP Workshop
Date Published03/2005
Conference LocationSalvador Bahia, Brazi

This paper presents simulation results for a novel calibration scheme used to improve the high-speed digital-to-analog converters’ (DACs) linearity. This mixed-signal technique has only one analog element as main interface in its simplest form (a latched comparator). The use of digital correlation to acquire the DAC unit element’s errors, plus the use of a reducedscale auxiliary DAC, allows linearity improvements of more than 5 bits (~30 dB).