发明申请
US20170331486A1 High-Speed Successive Approximation Analog-to-Digital Converter of Two Bits per Circle
有权
基本信息:
- 专利标题： High-Speed Successive Approximation Analog-to-Digital Converter of Two Bits per Circle
- 申请号：US15521178 申请日：2015-05-21
- 公开(公告)号：US20170331486A1 公开(公告)日：2017-11-16
- 发明人： Dai-Guo Xu , Shi-Liu Xu , Gang-Yi Hu , Guang-Bing Chen , Jian-An Wang
- 申请人： China Electronic Technology Corporation, 24th Research Institute
- 优先权： CN201510256338.8 20150519
- 国际申请： PCT/CN2015/079456 WO 20150521
- 主分类号： H03M1/08
- IPC分类号： H03M1/08 ; H03M1/10 ; H03M1/20 ; H03M1/28
摘要：
The present invention pertains to a high-speed successive approximation analog-to-digital converter of two bits per circle, includes three switches, two capacitor arrays, three comparators, an encoding circuit, a first switch array corresponding to the first capacitor array, a second switch array corresponding to the second capacitor array, a shifting register and a digital correction unit. The analog-to-digital converter, featuring doubled speed, realizes a successive approximation process without any fault when a high-bit large capacitor is unsettled. Thus no redundancy bit capacitor is required to compensate for unsettled pre-stage large capacitor. By using the encoding circuit, a thermometer code is converted into a binary code effectively, and inherent errors of comparators are reduced by the randomization of three comparators.
公开/授权文献:
IPC结构图谱:
| H | 电学 |
| --H03 | 基本电子电路 |
| ----H03M | 一般编码、译码或代码转换 |
| ------H03M1/00 | 模/数转换；数/模转换 |
| --------H03M1/06 | .连续地补偿或防止物理参量的有害影响 |
| ----------H03M1/08 | ..噪声的有害影响 |