A CMOS Current Mirror with Enhanced Input Dynamic Range

A novel configuration of CMOS cascode current mirror with enhanced input dynamic range was presented. The proposed mirror circuit combines the advantages of wide input swing, wide output swing and large output resistance capability which makes it attractive for low-voltage application. Based on 0.18 um MOS model parameters, HSPICE simulation results show that the input current range of 1 uA to 1 mA with 723 MHz bandwidth for the proposed circuit.