A Minimal Realization Universal Filter Employing Third-Generation Current Conveyor and Operational Transconductance Amplifier

摘要

This paper proposes a new current-mode universal filter utilizing third-generation current conveyor (CCIII) and an operational transconductance amplifier (OTA) as an active device. This current-mode filter requires a minimum and all grounded passive elements. Only one grounded resistor and two grounded capacitors are required to get all the five, i.e., low pass, high pass, band pass, band reject, and all pass responses, without changing any hardware configuration. The current input is at low impedance port and current output is at high impedance port which makes this circuit a better composition. PSPICE simulation has been done to test and verify the theoretical and simulated results.