Design and Analysis of MOS only Active Inductor Circuit and its 2nd Order Band Pass Filter application

Abstract

This paper presents active inductor circuit designed with only MOS. The circuit have four MOS transistors only and no additional biasing current sources. The proposed design of active inductor offers small chip area, tunability and low power consumption of 172 µW. To analyse the performance of active inductor, a 2^nd order band pass filter structure is demonstrated with low noise as 7.16 nV/√Hz. Contrary to the latest State of Art, the proposed design of Active Inductor is an all MOS inductor with no passive components and current sources incorporated in the device. Cadence Virtuoso is used to simulate proposed active inductor and filter using a 90nm CMOS technology.