A Class AB Current Controlled Second Generation Voltage Conveyor using Self Cascode Current Mirror

A current controlled second generation voltage conveyor circuit implemented using self-cascode current mirrors with enhanced performance has been proposed in this paper. The proposed circuit is based on class-AB technique which is employed at the input and output stages.Proposed circuit provides high linearity, large bandwidth and negligible offsets. Parasitic impedances at terminals Y and Z of the proposed voltage conveyor circuit can be independently controlled by dc bias currents. This feature can be fruitfully utilized in the realization of different electronically tunable analog circuits, and also to reduce the use of external resistors. The functionality of the circuit is verified by simulation using 180nm CMOS technology and supply voltage of ±0.9V.