Title :
Linearity of switched capacitor filters employing nonlinear capacitors
Author :
Bermudez, Jog C M ; Schneider, Marcio C. ; Montoro, Carlos G.
Author_Institution :
Departamento de Engenharia Eletronica, Univ. Federal de Santa Catarina, Brazil
Abstract :
Full compatibility of SC (switched-capacitor) filters with VLSI processes has been demonstrated. To this end, the conditions for linear charge and voltage processing have been derived. Considerations on the precision of the transfer function coefficients and on the alternatives for capacitor implementations show the feasibility of high-precision, low-distortion SC filters integrated in any digital MOS process
Keywords :
MOS integrated circuits; VLSI; cascade networks; linear integrated circuits; low-pass filters; switched capacitor filters; transfer functions; VLSI processes; cascade filters; digital MOS process; linear charge processing; linear voltage processing; low pass filters; low-distortion SC filters; nonlinear capacitors; switched capacitor filters; transfer function coefficients; Analog circuits; CMOS technology; Digital filters; Integrated circuit technology; Linearity; MOS capacitors; Mirrors; Operational amplifiers; Very large scale integration; Voltage;
Conference_Titel :
Circuits and Systems, 1992. ISCAS '92. Proceedings., 1992 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0593-0
DOI :
10.1109/ISCAS.1992.230307
