In this study a simple approach for design of four terminal floating nullor
(FTFN) is introduced and two new CMOS FTFN topologies are proposed using t
he approach from suitable CMOS negative current conveyor (CCII-) structures
. The performance of the proposed circuits was tested by PSPICE computer si
mulation program. The feasibility of the proposed circuits was shown on a c
urrent-mode band-pass filter example constructed using one of the proposed
CMOS FTFN circuits. The simulation results are given to confirm the predict
ed theory. (C) 1999 Elsevier Science Ltd. All rights reserved.