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A novel LC VCO employing an adaptive body-bias is proposed for low power and low voltage high performance signal generation. By using the adaptive body-bias technique, the threshold voltage of the cross-coupled pair is reduced, and meanwhile the effective source-to-drain voltage and oscillation amplitude are increased, which improves the phase noise. In addition, the back-gate capacitances from the...
This paper presents design techniques for a low-voltage voltage-controlled oscillator (VCO) with a wide tuning range and low sensitivity to process, voltage, and temperature (PVT) variations. For wide tuning range, a switched tuning scheme is employed coupled with voltage-boosting techniques in a manner that improves the quality factor and tuning range of a switched capacitor array. To minimize the...
In the paper a circuit implementation of CMOS voltage controlled oscillator is presented. The most interesting feature of the presented proposal is extreme low voltage suitability, because CMOS inverters are used as main building blocks. The simulation results with real foundry parameters are also included.
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