发明名称 |
PHOTOELECTRIC CONVERSION INTEGRATED CIRCUIT DEVICE |
摘要 |
A photoelectric conversion integrated circuit device for converting a light signal into a voltage signal has a photodiode that outputs a current in accordance with a light signal it receives, a current-to-voltage conversion circuit that outputs a voltage signal in accordance with a current signal it receives, and a test circuit that outputs a current and whose on/off state is controllable from the outside. At the output of the photodiode, two output terminals are provided, of which one is connected to the current-to-voltage conversion circuit and the other to the test circuit. This photoelectric conversion integrated circuit device allows a fault in the wiring between the photodiode and the current-to-voltage conversion circuit to be detected by feeding an input current to the current-to-voltage conversion circuit without shining light on the photodiode. <IMAGE> |
申请公布号 |
EP0975025(A4) |
申请公布日期 |
2001.06.20 |
申请号 |
EP19980911201 |
申请日期 |
1998.04.02 |
申请人 |
ROHM CO., LTD. |
发明人 |
SHIMAMURA, NOBUTOSHI;SHODO, KENZO |
分类号 |
G01R31/26;G01J1/44;H01L27/14;H01L27/144;H01L27/146;H01L31/10;H04N5/335;H04N5/369;H04N5/374 |
主分类号 |
G01R31/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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