Low Voltage High Performance High Swing Cascode Current Mirror

A new very high performance low voltage cascode current mirror (CM) circuit is proposed in this work. The CM utilizes the low supply voltage and low input resistance characteristics of a cascode CM. In this CM, cascode configuration is used to obtain a wide operating current range and resistance compensation technique is incorporated to increase the operating bandwidth. The peaking in frequency response is reduced by use of an additional large MOSFET. The proposed CM is simulated by Cadence Analog Design Environment using UMC 90 nm CMOS technology. In the proposed CM a bandwidth of 570 MHz, the 1% settling time of 20 ns, input and output resistances of 25.41 Ω and 770.2 MΩ respectively are obtained with a single supply voltage of 1V.