A standard CMOS technology wideband amplifier based on current conveyor and its application in NMR spectroscopy

A wideband amplifier design for NMR signal application is described in this paper. The amplifier is based on current-conveyors and benefits from several advantages: large bandwidth, low noise, low offset and low number of discrete components needed for the implementation. In this application, current conveyor is based on the voltage to current conversion using op-amp and current mirror. The amplifier is designed to operate up to 500 MHz using a standard CMOS technology. This paper describes the structure, the principle, the simulation results and practical test of this amplifier.