Voltage Difference Transconductance Amplifier based Voltage Mode Band Pass Filter with constant Q-Factor

This paper, realizes a new band pass filter (BPF) circuit based on two Voltage Differencing Transconductance Amplifiers (VDTAs). The devised circuit uses two capacitors without using a resistor. It makes an easy way for the fabrication of ICs in VLSI design. It operates in voltage-mode. The proposed circuit is enforced in a gpdk 180 nm CMOS process using a Cadence Virtuoso tool. Moreover, the proposed Band Pass Filter circuit operated at low voltage i.e., ±0.9 V, avails bias current of 150 μA and dissipates 0.54 mW power. The transconductance value of this element is electronically tunable/controllable with the bias currents.