Title :
Programmable switched current filters using MOSFET-only current dividers
Author :
Gonçalves, R.T. ; Filho, S. Noceti ; Schneider, M.C. ; Galup-Montoro, C.
Author_Institution :
Lab. de Instrum. Eletronica, Univ. Federal de Santa Catarina, Florianopolis, Brazil
Abstract :
A new technique to achieve switched current filters is presented. The basic elements of the filters are operational amplifiers, switches, MOS transistors and grounded capacitors. The use of MOSFET-only current dividers allows digitally programming of the coefficients of the filter transfer function. User programmable analog filtering in digital CMOS technology and, particularly, in sea-of-gates is the main envisaged application of the proposed technique
Keywords :
CMOS analogue integrated circuits; switched current circuits; switched filters; MOS transistors; MOSFET-only current dividers; SI filters; active filters; digitally programming; filter transfer function; grounded capacitors; operational amplifiers; programmable analog filtering; programmable switched current filters; Attenuators; CMOS technology; Digital filters; Laboratories; MOS capacitors; MOSFET circuits; Mirrors; Operational amplifiers; Switches; 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.1995.510273
