Abstract
Electronics industries often require low voltage and low power current mirror circuits with high performance in analog and mixed VLSI signal applications. The current mirror circuits trace the input current into an output device without any degradation for any load conditions. The major challenges while designing the current mirror circuits include low input and high output resistance, low input–output voltage and low noise considerations. Different topologies are developed in current mirror circuits to overcome these limitations but it is hard to satisfy all these requirements in a single circuit design. A detailed analysis of different current mirrors circuits is very essential for modern mixed VLSI signal applications. In this paper, the performance parameters of different current mirror circuits with the various topologies like low voltage CMOS analog design, MOSFETs devices in sub-threshold region, bulk driven and FGMOS in circuit level are compared and analyzed. The comparative analysis shows that the combination of two or more topologies performs better in analog VLSI design applications.
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