CMOS Realization of the Operational Mirror Amplifier

The design of a CMOS operational mirrored amplifier (OMA) suitable for high frequency applications is proposed. The CMOS operational mirrored amplifier is developed using class AB operational amplifier and two current mirrors. To obtain a wide bandwidth and high stability, HF feedforward techniques have been used. These techniques made the proposed circuit suitable for continuous – time analog signal processing. Simulation results for the proposed CMOS operational mirror amplifier circuit using PSpice are presented. Also, a performance comparison with pervious realization using BJT is given. Key-Words: Operational mirror amplifier, Nullor, Nullator, Darlington pair, CMOS, operational floating amplifier.