Title :
Improved adaptive digital compensation for cascaded ΔΣ ADCs
Author :
Kiss, Péter ; Silva, José ; Moon, Un-Ku ; Stonick, John T. ; Temes, Gabor C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
Abstract :
Cascaded delta-sigma (MASH) converters offer a good compromise between high accuracy, robust stability and speed. However, they are very sensitive to analog circuit imperfections. This paper presents an improved adaptive on-line digital compensation of these errors. Behavioral and circuit-level simulations have confirmed an achievable 13 bit performance and 6 MHz bandwidth for the proposed ADC
Keywords :
analogue-digital conversion; cascade networks; delta-sigma modulation; error compensation; 13 bit; 6 MHz; MASH converter; adaptive digital compensation; analog circuit imperfections; cascaded ΔΣ ADCs; cascaded delta-sigma converters; online digital error compensation; Analog circuits; Bandwidth; Circuit noise; Circuit simulation; Filters; Frequency; Multi-stage noise shaping; Robust stability; Sampling methods; Signal to noise ratio;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.856251
