2002 · 15 citations · 3 references
EngineeringComputer EngineeringElectrical EngineeringMicroelectronicsSemiconductor DevicesVlsi DesignAnalog Integrated CircuitsCmos Circuit DesignComplementary Metal-oxide-semiconductor TechnologyIntegrated Circuit DesignLow-power Digital Circuit DesignMixed-signal Integrated Circuit DesignBandwidthCmos Analog Circuit DesignCmos Analog Integrated CircuitsCmos Digital Circuit DesignLinearityLocal FeedbackLow-power Cmos DesignTransconductance
A CMOS current feedback op amp has been designed and tested. The design is suitable for implementation on digital VLSI technology, and exploits a novel CMOS compound transistor which offers a higher transconductance than a single MOS transistor for the same power dissipation. This is achieved by local current feedback. Here we discuss the design trade offs of this building block and present measurements on a 0.6 /spl mu/m digital CMOS technology implementation. The measurements confirm that the design achieves wide bandwidth and good linearity with low power dissipation.
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