发明名称 |
COMPARATOR, ANALOG-TO-DIGITAL CONVERTING APPARATUS INCLUDING THE SAME, AND ANALOG-TO-DIGITAL CONVERTING METHOD |
摘要 |
A comparator includes a common mode voltage sampling unit suitable for sampling a common mode voltage based on a sampling control signal; a coarse ramping voltage sampling unit suitable for sampling a coarse ramping voltage based on the sampling control signal; a preamplifier suitable for amplifying a difference between an input voltage and the sampled coarse ramping voltage to output a coarse conversion result, and amplifying a difference between a fine ramping voltage and the sampled common mode voltage to output a fine conversion result; and a signal processing unit suitable for generating the sampling control signal based on the coarse conversion result, and generating a comparison signal based on the coarse conversion result and the fine conversion result. |
申请公布号 |
US2016269005(A1) |
申请公布日期 |
2016.09.15 |
申请号 |
US201514816982 |
申请日期 |
2015.08.03 |
申请人 |
SK hynix Inc. |
发明人 |
YOO Si-Wook |
分类号 |
H03K4/90;H03M1/12;H03K5/24 |
主分类号 |
H03K4/90 |
代理机构 |
|
代理人 |
|
主权项 |
1. A comparator comprising:
a common mode voltage sampling unit suitable for sampling a common mode voltage based on a sampling control signal; a coarse ramping voltage sampling unit suitable for sampling a coarse ramping voltage based on the sampling control signal; a preamplifier suitable for amplifying a difference between an input voltage and the sampled coarse ramping voltage to output a coarse conversion result, and amplifying a difference between a fine ramping voltage and the sampled common mode voltage to output a fine conversion result; and a signal processing unit suitable for generating the sampling control signal based on the coarse conversion result, and generating a comparison signal based on the coarse conversion result and the fine conversion result, wherein the common mode voltage is inputted separately from the input voltage. |
地址 |
Gyeonggi-do KR |