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    Details
    Author(s)
    Affiliation
    Affiliation
    Korea Advanced Institute of Science and Technology
    Display Name
    Il-Hoon Jang
    Affiliation
    Affiliation
    Samsung Electronics
    Display Name
    Gyeom-Je Bae
    Affiliation
    Affiliation
    Samsung Electronics
    Display Name
    Dong-Hun Lee
    Affiliation
    Affiliation
    Korea Advanced Institute of Science and Technology
    Display Name
    Ye-Dam Kim
    Affiliation
    Affiliation
    Korea Advanced Institute of Science and Technology
    Display Name
    Hankyu Lee
    Affiliation
    Affiliation
    Samsung Electronics
    Display Name
    Seong Joong Kim
    Affiliation
    Affiliation
    Samsung Electronics
    Display Name
    Seung-Tak Ryu
    Affiliation
    Affiliation
    Korea Advanced Institute of Science and Technology
    Abstract

    A hybrid noise-coupling (HNC) technique is proposed to mitigate the issues with digital noise-coupling (DNC) structure. In the proposed technique, the unwanted quantization noise that is generated from the noise-coupling ADC is injected into the input of the quantizer with a one-clock cycle delay, increasing the order of noise-shaping of this error. The proposed fourth-order CT-DSM with HNC scheme was fabricated in 28-nm CMOS technology with a core size of 0.3mm2. With an OSR of 32, the proposed design achieves an SNDR of 97.20-dB at a signal bandwidth of 15.625-kHz, which has a 7-dB improvement in comparison to DNC only.