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In the present proposal current-mode (CM) full-wave rectifiers (FWR) using a differential-difference current conveyor (DDCC) block, two MOS-based diodes and three grounded resistors. Two proposals of rectifiers are presented, the first is CM FW positive rectifier and the second is CM FW negative rectifier. The value 200MHz was observed in the operating frequency of the simulated designs. The SPICE simulations with 180 nm TSMC CMOS technology model file has been used to ensure the proper functioning of both of the proposals.

This paper proposes two generalised instrumentation amplifier topologies which can operate in voltage, current, transadmittance, and transimpedance mode. Each topology is a two stage structure, wherein an amplifier is used as first stage in the first topology and a converter is employed in the second one. The second stage is difference amplifier for both the structures. The theoretical proposition is verified through operational floating current conveyor (OFCC). The effect of non-idealities of OFCC on system performance, in particular finite transimpedance and tracking error, is also analysed and corresponding mathematical formulation is presented. The functional verification is performed through SPICE simulation using CMOS-based implementation of OFCC. The experimental results using current feedback operational amplifier-based OFCC implementation are also included which are in close agreement with theoretical and simulated results.

This paper presents a current-mode (CM) rectifier configuration using single operational floating current conveyor (OFCC). Ad ditionally, the topology uses two MOS transis tors operating as switches and is suitable for integration. The SPICE simulations using 0.18 Ilm TSMC CMOS technology parameters have been included to verify the theoretical predictions.

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