Flipped voltage follower based high dynamic range current mirror

For enhancing the performance of any analog circuit, a good current mirror must be designed for copying the current from one active device to other. In this proposed work, we have come up with a modified current mirror structure based on the Flipped Voltage Follower Cell, which improves dynamic range without trading off on other performance parameters. Simulations were performed in Cadence Spectre using UMC 180nm technology files and specifications were compared with reported high performance current mirrors. Comparative analysis shows that the proposed current mirror has a very high dynamic range as compared to other reported current mirrors, while keeping other parameters such as input and output impedances, bandwidth comparable which demonstrates the effectiveness of the proposed design.