The Voltage Difference Transconductane Amplifier (VDTA) has been traced out to be one of the active and efficient devices. These devices are also considered for designing of analog circuits to work on different functional aspects. This paper is mainly focused on presenting a newly devise of Schmitt trigger circuit by the use of the single active device, namely, VDTA and is realized without the involvement of passive element. This proved more propitious while fabricating an Integrated Circuits in VLSI design. The circuit, thus proposed avails a bias current of value 150 μA and works at ±0.9 V rail voltage. With the help of bias current, its amplitude can be electronically controllable/tunable. The circuit is greatly resistant to noise and temperature-sensitive. The devised circuit can be used in ADC’s, communication systems, waveform generators, etc. The devised circuit is simulated in a gpdk 180 nm CMOS process availing a Cadence Virtuoso tool. The circuit that has been designed provides a less rate of power dissipation which is of value 270 µW. The executed, results, however equaled with theoretical results which have been experimentally valid and proved by using commercially available ICs LM 13700