Abstract
A new current-mode universal filter is presented. The proposed filter uses three four-terminal
floating nullors (FTFNs), three grounded capacitors, and four grounded resistors. The proposed
filter has three inputs and one output and can realize lowpass, highpass, bandpass, notch, and
allpass transfer functions without changing the circuit topology. The proposed filter enjoys low
active and passive sensitivities and independent control of the parameters