公开(公告)号：US10735009B2

公开(公告)日：2020-08-04

申请号：US16475117

申请日：2016-06-01

申请人： CHINA ELECTRONIC TECHNOLOGY CORPORATION, 24TH RESEARCH INSTITUTE

发明人： Ting Li ,  Gang-Yi Hu ,  Ru-Zhang Li ,  Jian-An Wang ,  Yong Zhang ,  Zheng-Bo Huang ,  Guang-Bing Chen ,  Yu-Xin Wang ,  Dong-Bing Fu ,  Yan Wang ,  Jun Yuan

IPC分类号： H03M1/06

摘要： A sampling device includes a switch capacitor circuit. First ends of two switches are respectively connected to an input signal. Second end of the first switch is connected to an upper plate of a first capacitor. Second end of the second switch is connected to a lower plate of a second capacitor. A connection node connecting a lower plate of the first capacitor to an upper plate of the second capacitor is connected to a power source. The first ends of a third switch and a fourth switch are respectively connected to an input common-mode voltage. A second end of the third switch is connected to the upper plate of the first capacitor. A second end of the fourth switch is connected to the lower plate of the second capacitor. The connection node is connected to the power source. Thus, an output common-mode voltage of the sampling device is adjustable.

公开(公告)号：US11271579B2

公开(公告)日：2022-03-08

申请号：US16333189

申请日：2018-03-01

申请人： CHINA ELECTRONIC TECHNOLOGY CORPORATION, 24TH RESEARCH INSTITUTE

发明人： Yong Zhang ,  Ting Li ,  Zheng-Bo Huang ,  Ya-Bo Ni ,  Dong-Bing Fu

IPC分类号： H03M1/12 ,  H03M1/16 ,  H03M1/34

摘要： The present invention provides a comparator circuit applicable to a high-speed pipeline ADC. The comparator circuit includes a switch capacitor circuit, a pre-amplification circuit, and a latch circuit. The pre-amplification circuit includes a pre-amplifier, a resistance-adjustable device, two switches. The latch circuit includes a differential static latch, a first capacitor, a second capacitor, and a third switch. The transmission rates of a sampling phase and a setup phase can be increased.

公开(公告)号：US09344105B2

公开(公告)日：2016-05-17

申请号：US14890160

申请日：2014-05-05

申请人： China Electronic Technology Corporation, 24th Research Institute

发明人： Ting Li ,  Ru-Zhang Li ,  Yong Zhang ,  Zheng-Bo Huang ,  Guang-Bing Chen ,  Jian-An Wang ,  Yu-Xin Wang ,  Dong-Bing Fu ,  Yan Wang ,  Xu Wang

IPC分类号： H03M1/06 ,  H03M1/42 ,  H03M1/12

CPC分类号： H03M1/0675 ,  H03M1/0678 ,  H03M1/1061 ,  H03M1/1245 ,  H03M1/42 ,  H03M1/468 ,  H03M1/687

摘要： A successive approximation analog-to-digital converter and conversion method thereof are provided, the successive approximation analog-to-digital converter includes a segmented-multiple-stage capacitor array with redundancy bits, a comparator, a weight-storage circuit, a code reconstruction circuit and a control logic circuit. The successive approximation analog-to-digital converter helps to decrease the complexity of circuit design, featuring small size and low power. Without auxiliary capacitor array, switches and control logic, the circuit can work to precisely measure and correct capacitor mismatch errors.

摘要翻译： 提供了逐次逼近的模数转换器及其转换方法，逐次逼近模数转换器包括具有冗余位的分段多级电容器阵列，比较器，加权存储电路，代码重构 电路和控制逻辑电路。 逐次逼近模数转换器有助于降低电路设计的复杂性，具有体积小，功耗低的特点。 没有辅助电容阵列，开关和控制逻辑，该电路可以用来精确测量和纠正电容器失配误差。