| 摘要 |
PROBLEM TO BE SOLVED: To provide a light-receiving circuit having an improved output characteristic. SOLUTION: The light-receiving circuit has: a photo diode 6 to convert an optical input signal to a current signal; and an I-V conversion circuit 8 to convert the current signal to a voltage signal. The light-receiving circuit is equipped with a transient-current processing circuit 21 to process a transient current from the I-V conversion circuit 8 when it is switched from an operating condition to a nonoperating condition, and a clipping circuit 24 to keep a voltage level of the input terminal of the transient-current processing circuit 21 at a predetermined level. COPYRIGHT: (C)2011,JPO&INPIT
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