摘要 : This paper deals with design and implementation of fractional-order (FO) oscillator based upon two topologies which employ operational transconductance amplifier (OTA). The first topology is developed on a trans-admittance mode fr... 展开 This paper deals with design and implementation of fractional-order (FO) oscillator based upon two topologies which employ operational transconductance amplifier (OTA). The first topology is developed on a trans-admittance mode fractional-order all-pass filter (FAPF) cascaded with an trans-impedance mode integrator whereas the other one consist of a trans-admittance mode FAPF cascaded with a trans-impedance mode differentiator. The presence of OTA makes the proposed FO oscillator electronic tunable. Both topologies are verified through SPICE simulations using 180nm CMOS technology node. The ability of proposed FO oscillator, to generate very low frequency is also explored in this work. The stability analysis is done using forlocus function of MATLAB and the mathematical equations for sensitivity of the oscillation frequency with respect to various circuit parameters are also derived. Further, to ensure the robustness of the proposed circuits process-voltage-temperature (PVT) and Monte Carlo analyses have been performed. 收起