A Noise-Coupled Time-Interleaved ΔΣ ADC with 4.2MHz BW, -98dB THD, and 79dB SNDR

In this paper, two prototype versions of a SC time-interleaved DeltaSigma ADC are described. Both use quantization- noise coupling for enhanced noise shaping. They achieve high linearity, and FOMs of 0.33 and 0.48pJ/conversion-step, in signal BWs of 2.5 and 4.2MHz, respectively.

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