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This paper reports a low-voltage low-power self-cascode VCO with a phase noise optimization technique. Self-cascode structure with capacitive feedback network provides better phase noise performance without degrading the voltage headroom. Phase noise performance of the proposed VCO has been optimized by an optimum selection of capacitor ratio. Fabricated in a 0.18-μm RF CMOS process, the oscillator...
This paper demonstrates a novel way of using a single type of high electron mobility transistor (HEMT) device for detecting two kinds of biomolecules (Photosystem I and recombinant human monokine induced by interferon gamma, MIG). MIG was successfully detected in 150 mM concentration of phosphate buffer solution (PBS). Floating gate configuration used for biomolecule detection eliminates the need...
Low voltage and low power are two key requirements for on-chip realization of wireless power and data telemetry for applications in biomedical sensor instrumentation. Batteryless operation and wireless telemetry facilitate robust, reliable, and longer lifetime of the implant unit. As an ongoing research work, this paper demonstrates a low-power low-voltage sensor readout circuit which could be easily...
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