| 发明名称 |
SEMICONDUCTOR DEVICE |
| 摘要 |
An object of the present invention is to shorten time required for detecting disconnection in an input terminal of an A/D conversion circuit. A semiconductor device includes a first input channel that couples a first input terminal and an A/D conversion unit to each other, a second input channel that couples a second input terminal and the A/D conversion unit to each other, and a control circuit unit that separates the second input channel from the second input terminal and the A/D conversion unit to charge or discharge the second input channel when a signal input into the first input terminal is sampled by the A/D conversion unit. |
| 申请公布号 |
US2017093419(A1) |
申请公布日期 |
2017.03.30 |
| 申请号 |
US201615265048 |
申请日期 |
2016.09.14 |
| 申请人 |
RENESAS ELECTRONICS CORPORATION |
发明人 |
USUI Masaaki;NAKANO Shunsuke |
| 分类号 |
H03M1/12 |
主分类号 |
H03M1/12 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A semiconductor device comprising:
a first input terminal; a second input terminal; an A/D conversion unit having a sample hold circuit; a first input channel that couples the first input terminal and the A/D conversion unit to each other; a second input channel that couples the second input terminal and the A/D conversion unit to each other, and a control unit that separates the second input channel from the second terminal and the A/D conversion unit to charge or discharge the second input channel when a signal input into the first input terminal is sampled by the sample hold circuit. |
| 地址 |
Tokyo JP |
