A square wave generator using single CMOS DCCII

In this paper, square wave generator using a single second generation differential current conveyor (DCCII) is proposed. The proposed square wave generator consists of two resistors and a single grounded capacitor. CMOS gpdk 180 nm technology was used for designing the proposed circuit. The mathematical analysis, simulation results and experimental results of the proposed circuit are discussed. And its time period can be tuned independently either by the grounded capacitor C, or, by the resistor R₁. Later, the circuit was built with commercially available current feedback amplifiers (AD844), passive components used externally and tested for waveform generation and tunability. Obtained results demonstrate good agreement with theoretical values.