U. Horbach

Design and implementation of sigma-delta D/A converters with optimized loop filters

U. Horbach, M. Lang, M. Lang, 1991, 1991., IEEE International Sympoisum on Circuits and Systems.

Design of a 20 bit sigma-delta A/D-converter for audio applications

U. Horbach, 1990, IEEE International Symposium on Circuits and Systems.