A new systematic synthesis procedure of configurable higher order analog filter

This paper presents a novel programmable biquadratic filter structure using a network of operational transconductance amplifier(OTA). A new hierarchical design methodology of programmable higher order analog filter using the proposed biquadratic function as the basic building block has been discussed. The proposed biquadratic structure offers multifunction property, better programmability, low sensitivity etc. These features sustain through all the stages in higher order filter realization. The performance of the proposed filter has been validated with SPICE simulation results.