A 0.6 V 10 GHz CMOS VCO Using a Negative-Gm Back-Gate Tuned Technique

Abstract

Without an extra on-chip accumulation-mode MOS varactor, a voltage-controlled oscillator (VCO) using a negative-transconductance back-gate tuned technique is demonstrated in a standard 0.18 μm CMOS process to achieve low-voltage, wide-range and high-frequency designs. Employing the varied p-n junction capacitance and the varied transconductance in the… (More)

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