DXCCII-based first order voltage-mode all-pass filter

Abstract

In this article, a new design for realizing voltage-mode (VM) first order all-pass filter (APF) using single dual-X second generation current conveyor (DXCCII), one capacitor, one grounded resistor and one NMOS transistor operating in triode region is presented. The proposed circuit is analyzed for non-ideality presence due to voltage and current tracking errors and also due to parasitic components of the DXCCII to check the effect on functionality of proposed all-pass filter. PSPICE simulation and AD844 analogue IC-based experimental results are included to verify the proposed theory of the circuit.