| 发明名称 | Analog-to-digital converter and electronic apparatus | ||
| 摘要 | An analog-to-digital converter includes a digital-to-analog (DA) converting part having a predetermined number of gradation converting stages and configured to cause each of the predetermined number of gradation converting stages to convert a digital signal to an analog signal and output the converted analog signal, a main-comparator configured to output a binary signal on the basis of a first comparison result between the analog signal output from the DA converting part and a predetermined reference level, and a second sub-comparator having an offset less than a quantization unit with respect to the main-comparator and being configured to output a binary signal on the basis of a second comparison result between the analog signal output from the DA converting part and the predetermined reference level. | ||
| 申请公布号 | US8854240(B2) | 申请公布日期 | 2014.10.07 |
| 申请号 | US201313868711 | 申请日期 | 2013.04.23 |
| 申请人 | Fujitsu Limited | 发明人 | Chen Yanfei;Tsukamoto Sanroku |
| 分类号 | H03M1/06;H03M1/46 | 主分类号 | H03M1/06 |
| 代理机构 | Arent Fox LLP | 代理人 | Arent Fox LLP |
| 主权项 | 1. An analog-to-digital converter comprising: a digital-to-analog (DA) converting part having a predetermined number of gradation converting stages and configured to cause each of the predetermined number of gradation converting stages to convert a digital signal to an analog signal and output the converted analog signal; a main-comparator configured to output a binary signal on the basis of a first comparison result between the analog signal output from the DA converting part and a predetermined reference level; and a sub-comparator having an offset less than a quantization unit with respect to the main-comparator and being configured to output a binary signal on the basis of a second comparison result between the analog signal output from the DA converting part and the predetermined reference level. | ||
| 地址 | Kawasaki JP | ||