Title :
Sensitivity and error reduction by component swapping in switched-current filters
Author :
De Queiroz, Antonio Carlos M ; Schechtman, Jones
Author_Institution :
COPPE, Univ. Fed. do Rio de Janeiro, Brazil
Abstract :
This paper describes a procedure for the simulation of passive filters using switched-current techniques, where sensitivity reduction is obtained by swapping the positions and roles of pairs of identical elements at successive switching periods. The technique can produce significant reduction of sensitivity to element mismatches at low cost in terms of added complexity and without reducing the operating speed of the circuit. The technique is exemplified for application to component-simulation switched-current filters
Keywords :
active filters; sensitivity analysis; switched current circuits; switched filters; component swapping; element mismatches; error reduction; operating speed; passive filters; sensitivity reduction; successive switching periods; switched-current filters; Active filters; Circuit simulation; Filtering theory; Frequency; Gyrators; Impedance; Passive filters; Polynomials; Transconductors; Virtual prototyping;
Conference_Titel :
Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5471-0
DOI :
10.1109/ISCAS.1999.780779
