New CMOS realization of voltage differencing transconductance amplifier (VDTA)‎

Abstract EN

The voltage differencing transconductance amplifier (VDTA) is a recently introduced active element for analog signal processing.

In this work, a new and simple CMOS realization of VDTA is presented.

The proposed block has two voltage inputs and two kinds of current output, so it is functional for voltage- and transconductance-mode operation.

Furthermore, VDTA exhibits two different values of transconductance so that there is no need to external resistors for VDTA based an application which seems to be a good advantage for analog circuit designer.

The proposed CMOS voltage differencing transconductance amplifier (VDTA) are simulated using TSMC 0.18µm CMOS technology on Advanced Design System and the results are also tabulated for comparison.

The main features of these voltages differencing transconductance amplifier are low voltage, less power.