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- W2188042098 abstract "When conventional biasing topologies are employed, near sub-threshold operated amplifiers show large performance deviations under unavoidable PVT variations. Moreover, these effects become severe when these circuits are implemented in sub-nanometer technologies. This paper introduces a new type of compensation technique to realize a reliable low voltage, low-noise amplifier that is achieved by stabilizing the core device trans-conductance (g <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>m</sub> ). To minimize the g <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>m</sub> variation, the proposed technique uses an error voltage generated by comparing the LNA current with a stable constant current reference (CCR). Not only the compensation circuits, a new low-voltage self-biased CCR source is also introduced which is based on conventional β multiplier that can operate with a voltage as low as 0.4 V with a resulting TC (temperature coefficient) of 118 ppm/°C for typical-typical corner case. The g <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>m</sub> and S <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>21</sub> of the compensated 65 nm LNA core device shows 8 × times lower variations compared to that of a conventional one when temperature varies from -20 to +110°C and with the consideration of five process corner cases. Finally, Monte Carlo estimation for both process and mismatch shows 34% reduction in standard deviation of S <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>21</sub> and 20% improvement in yield compared to a conventionally biased LNA. The compensated LNA with all its accessories consumes only 402 μW power when operated at a supply voltage of 0.6 V." @default.
- W2188042098 created "2016-06-24" @default.
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- W2188042098 date "2015-12-01" @default.
- W2188042098 modified "2023-10-01" @default.
- W2188042098 title "A New PVT Compensation Technique Based on Current Comparison for Low-Voltage, Near Sub-Threshold LNA" @default.
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- W2188042098 doi "https://doi.org/10.1109/tcsi.2015.2486078" @default.
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