Electronics Letters · 2003 · 11 citations · 0 references
EngineeringElectrical EngineeringAnalog ElectronicsCircuit TheoryMicroelectronicsAnalog Integrated CircuitsCmos Circuit DesignCurrent-voltage CharacteristicsFeedback AmplifiersFeedback CircuitsOperational AmplifiersCmos Analog Integrated CircuitsCmos Operational AmplifiersCommon-mode RejectionCommon-mode Rejection RatioCurrent Feedback AmplifiersOperational Amplifier CircuitsOperational Amplifier DesignOperational Transconductance Amplifiers
A novel current-feedback operational amplifier, the input stage of which is based on the design and use in a repeated pattern of a current-transfer cell, exhibits performance characteristics superior to those obtained with an established input architecture: in particular, the common-mode rejection ratio (CMRR) is 105 dB, and the DC offset voltage less than 200 µV.