公开(公告)号：US20170272094A1

公开(公告)日：2017-09-21

申请号：US15463704

申请日：2017-03-20

申请人： Industry University Cooperation Foundation Hanyang University

发明人： Changsik YOO ,  Donghyeok JEONG ,  Jinho NOH

IPC分类号： H03M3/00 ,  H03K19/21 ,  H03M7/16 ,  H03K3/03

CPC分类号： H03M3/464 ,  H03K3/0315 ,  H03K19/21 ,  H03M1/0665 ,  H03M1/60 ,  H03M1/64 ,  H03M3/422 ,  H03M3/436 ,  H03M3/496 ,  H03M7/165

摘要： An analog to digital converter is provided. The analog to digital converter includes: an arithmetic operator combining an analog input signal with a feedback signal; a loop filter filtering an output signal of the arithmetic operator; a quantizer quantizing an output signal of the loop filter to output a digital signal; and a feedback converting the digital signal to output a feedback signal, in which the quantizer includes: a plurality of VCOs each receiving a positive output signal and a negative output signal of the loop filter and outputting VCO signals; a plurality of samplers receiving the VCO signals output from the plurality of VCOs, respectively and outputting sampled signals; and a phase detector detecting a phase difference in the sampled signals output from the plurality of samplers, respectively, to detect a phase difference in two VCO signals output from the plurality of VCOs, respectively.