发明名称 |
Integrated analog-to-digital converter with detection of external faults |
摘要 |
An integrated circuit includes an input pad for receiving an externally generated analog signal, and a pre-sampling circuit for pre-sampling at least one internally generated analog reference signal. An analog-to-digital converter is connected to the input pad for providing a numerical value of the externally generated analog signal, and is connected to the pre-sampling circuit for providing a numerical value of the internally generated analog reference signal. A fault signaling circuit is connected to the pre-sampling circuit and to the analog-to-digital converter for generating a fault signal when the numerical value of the externally generated analog signal is equal to the numerical value of the internally generated analog reference signal. The fault signal indicates that an electrical connection providing the externally generated analog signal to the input pad is faulty.
|
申请公布号 |
US6873272(B2) |
申请公布日期 |
2005.03.29 |
申请号 |
US20030713541 |
申请日期 |
2003.11.14 |
申请人 |
STMICROELECTRONICS S.R.L. |
发明人 |
PEZZINI SAVERIO |
分类号 |
H03M1/10;H03M1/12;(IPC1-7):H03M1/10 |
主分类号 |
H03M1/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|