Electronics Letters · 1998 · 10 citations · 3 references
EngineeringElectrical EngineeringAnalog ElectronicsCircuit TheoryMicroelectronicsAnalog Integrated CircuitsCmos Circuit DesignCurrent MirrorsDifferential AmplifiersIntegrated Circuit DesignOperational AmplifiersBandwidthCascode Current MirrorCmos Operational AmplifiersCommon-mode RejectionCommon-mode Rejection RatioCurrent Mirror DesignFully Differential Operational AmplifiersOperational Amplifier Design
A fully differential, wide bandwidth and good CMRR current operational amplifier is presented. The proposed circuit employs a tapped cascode current mirror as an input stage and simple common source stages as an outpnt stage. To enhance the common-mode rejection ratio (CMRR), a high impedence node is implemented by two cross-coupled simple current mirrors.
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High CMRR CMOS current operational amplifier
E. Abou-Allam, E.I. El-Masry · Electronics Letters · 1994 · 12 citations