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This paper presents a ΔΣ modulator with ring amplifiers to decrease the power consumption. The proposed ΔΣ modulator employs a technique of cutting-off the current of ring amplifiers after they are ...
A 10-20 GHz tunable LC-VCO core using this inductor was also fabricated. Because of the multi-stage variable inductor, 20 GHz operation having over 10 GHz continuous tuning range with phase noise of ...