In this study, five current-mode FTFN-based multifunction filters are propo
sed, which realize the same transfer functions in ideal case. All circuits
employ two capacitors and three resistors. For each circuit R-C:C-R transfo
rmation increases the number of realization possibilities to ten. The propo
sed topologies simultaneously realize three basic filtering functions using
minimum number of FTFNs and provide high output impedances that enable eas
y cascading in current mode. Sensitivity analysis of the filters show that
they have low passive sensitivities, omega (0), Q and omega (0)/Q of the fi
lters are insensitive to current tracking errors, furthermore omega (0) of
the filters are insensitive to voltage tracking errors of the FTFNs. The pr
oposed circuits do not require component matching condition except for notc
h and allpass responses and permit independent adjustment of omega (0) with
out disturbing omega (0)/Q. Experimental and simulation results are given t
o verify the theoretical analyses.