Title :
A capacitor mismatch insensitive technique for RSD cyclic ADC
Author :
Meng, Hao ; Paasio, Air ; Sun, Jia
Author_Institution :
Turku Centre for Comput. Sci. (TUCS), Univ. of Turku, Turku, Finland
Abstract :
A new cyclic ADC structure achieving capacitor mismatch insensitivity is presented. This technique enables cyclic ADC to obtain a very precise residue voltage in cycles independent of matching of capacitors. In addition, this new structure saves the die area of capacitors in the switched capacitor network by 25% and significantly reduces power consumption by up to 40%. A 12-bit 1.67MS/s cyclic ADC using the new structure is implemented in 0.35μm CMOS.
Keywords :
CMOS digital integrated circuits; analogue-digital conversion; CMOS; RSD cyclic ADC; capacitor mismatch insensitive technique; size 0.35 mum; switched capacitor network; word length 12 bit; Capacitors; Clocks; Computer architecture; Periodic structures; Power demand; Switches; Synchronization;
Conference_Titel :
Circuit Theory and Design (ECCTD), 2011 20th European Conference on
Conference_Location :
Linkoping
Print_ISBN :
978-1-4577-0617-2
Electronic_ISBN :
978-1-4577-0616-5
DOI :
10.1109/ECCTD.2011.6043399
