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In this paper, a high-resolution medium-frequency single-loop fourth-order 1-bit sigma-delta modulator is implemented in 0.18 ??m CMOS technology. The modulator has been presented with an oversampling ratio of 50, clock frequency of 31.25 MHz, 312.5 kHz bandwidth, and achieves a peak SNR of 101.7 dB, which is 16.6-bit resolution, 103 dB dynamic range. The whole circuits consume 58.55-mW from a single...
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