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This paper presents a comparison between resistor-free nanowatt CMOS current references based on different topologies. All of these current references are designed to generate 50 nA currents under 1 V power supply. Designed in a standard 0.35 μm CMOS process, these current references showed low sensitivity with respect to the variations from power supply, fabrication process and temperature. EKV 2...
The circuit proposed in this paper allows to generate a sub-1V 50 nA current reference. By changing the inversion mode of two transistors, the original Oguey's structure becomes compliant with ultra low voltage requirements, while preserving the topology inherent simplicity, guarantee of low cost. Furthermore, the use of EKV2.0 MOS model involves an inversion level free study. As a consequence, supply...
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