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A Low-Power VCO based ADC with asynchronous sigma-delta modulator in 65nm CMOS

A Low-Power VCO based ADC with asynchronous sigma-delta modulator in 65nm CMOS This paper presents a low power VCO based ADC with asynchronous sigma-delta modulator (ASDM). A prototype is designed in 65nm CMOS technology with a measured performance of 54.3dB SNDR and 68dB SFDR over 8MHz bandwidth while consuming 2.8mW from a 1.2V supply.

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