Voltage Mode Cascadable All-Pass Sections Using Single Active Element and Grounded Passive Components

In this paper, four new first order voltage mode cascadable all-pass sections are proposed using single active element and three grounded passive components, ideal for IC implementation. The active element used is a fully differential current conveyor. All the proposed circuit possess high input and low output impedance feature which is a desirable feature for voltage-mode circuits. Non-ideality aspects and parasitic effects are also given. As an application, a multiphase oscillator is designed. The proposed circuits are verified through PSPICE simulation results using TSMC 0.35 µm CMOS parameters