A Design and Analysis of Low Voltage FB-VDIBA and Biquad Filter Application

In this work, a low voltage design of Fully Balanced Voltage Differencing Inverting Buffered Amplifier (FB-VDIBA) designed using dynamic threshold MOSFET (DTMOS). It consists of eight DTMOS transistors and rest all are traditional transistors. The transconductance and power dissipation of proposed FB-VDIBA are 1mS and 0.476mW respectively. The proposed circuit operates at ±0.4V supply voltage. To illustrate the validity of proposed FB-VDIBA, a voltage mode biquad filter is implemented. The natural frequency of biquad filter based on proposed FB-VDIBA is 7.9MHz. The FB-VDIBA and its biquad filter are implemented and simulated employing TSMC 180nm CMOS technology in Cadence tool.