Title :
High order Dynamic Element Matching for multi-bit Delta Sigma A/D & D/A converters
Author :
Brien, Vincent O. ; MacNamee, Ciaran ; Mullane, Brendan
Author_Institution :
Dept. of Electron. & Comput. Eng., Univ. of Limerick, Limerick, Ireland
Abstract :
This paper presents a reduced area high order Dynamic Element Matching (DEM) scheme for use with multi-bit Delta Sigma data converters. The design leverages the increased digital signal processing afforded by low geometry CMOS processes to both improve performance and reduce analog circuit area. Within the converter, dual vector feedback DEMs are combined using a noise shaped splitter, this reduces logic area while providing 2nd order mismatch error shaping.
Keywords :
analogue-digital conversion; delta-sigma modulation; signal processing; digital signal processing; dual vector feedback; high order dynamic element matching; mismatch error shaping; multibit delta sigma data converters; noise shaped splitter; ADC; DAC; DEM; Delta-Sigma;
Conference_Titel :
Irish Signals & Systems Conference 2014 and 2014 China-Ireland International Conference on Information and Communications Technologies (ISSC 2014/CIICT 2014). 25th IET
Conference_Location :
Limerick
DOI :
10.1049/cp.2014.0725
