Single VDTA based resistorless quadrature oscillator

摘要

A new circuit for a simple resistorless quadrature oscillator is proposed in this work. The circuit consists of a single voltage dependant transconductance amplifier block and two grounded capacitors which ease IC fabrication. The workability of the circuit has been verified using 180 nm CMOS based TSMC Technology. Moreover, an experiment is performed using a prototype assembled using a commercially available operational transconductance amplifier IC LM3080.