Abstract:
This thesis proposes a current-mode sinusoidal oscillator whose output signals are in 90difference phase or called quadrature. It employs 2 current controlled current follower amplifiers and 2 grounded capacitors. The principal feature is that it can generate a quadrature signal with electronically/independently adjustable consequently, it can be used in microcontroller-based applications and easily developed in integrated circuit architeeture. The results obtained, from PSpice with ±1.5V supplies, are found that it can offer a precise quadrature signal, where total harmonic distortions of I₀₁ and I₀₂ are 1.1% and 1.4%, respectively, for 570 kHz of frequency. The total power consumption is about 3.65 mW.