Low Voltage and High Performance Constant Current Source using 90nm CMOStechnology

Abstract

This paper proposed a self-biasing constantcurrent source circuit which is suitable for analog integrated and mixed mode circuits.A low input resistance, high output resistance and high gain current source is proposed. This current source circuit is designed by using five n-type and two p-type MOSFETs. Simulation is performed with 90nm digital CMOS technology.Accuracy and gainare the most important parameters to observe the performance of the Current Source. This current source is operated at 0.8V supply voltage.