Title :
An offset compensated fully differential CMOS current comparator
Author :
Palmisano, G. ; Palumbo, G.
Author_Institution :
Dipartimento Elettrico, Elettronico e Sistemistico, Catania Univ., Italy
Abstract :
A novel fully-differential current comparator is proposed which is based on a double folded-cascode structure. Thanks to an offset and charge-injection compensation, it provides a sensitivity as good as 20 nA. Moreover, it achieves a switching time better than 30 ns with a 0.5-μA input step current while dissipating 45 μW
Keywords :
CMOS analogue integrated circuits; compensation; current comparators; 0.5 muA; 20 nA; 30 ns; 45 muW; CMOS current comparator; charge-injection compensation; double folded-cascode structure; fully differential current comparator; offset compensation; Analog integrated circuits; CMOS analog integrated circuits; CMOS technology; Diodes; Filters; Integrated circuit technology; Switched capacitor circuits; Switches; Switching circuits; Voltage;
Conference_Titel :
Circuits and Systems, 1995., Proceedings., Proceedings of the 38th Midwest Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-2972-4
DOI :
10.1109/MWSCAS.1995.510271
