CCII-Based Voltage-Mode First-Order All-Pass Filters with Grounded Passive Components

This paper proposes two new voltage-mode (VM) first-order all-pass filters (APFs). One of the proposed APFs can provide non-inverting response, and the other one can realize inverting response. The proposed circuits are designed with two second-generation current conveyors. Five grounded passive components are also utilized, four resistors and a capacitor. However, the proposed circuits suffer from a single resistive element matching condition. A quadrature oscillator is designed by using the inverting first-order VM APF as an application. All the simulations of the proposed circuits and application example are made by means of the SPICE program. Experimental results are also included.