CPC G01J 1/44 (2013.01) [G01C 3/06 (2013.01); H01L 31/107 (2013.01); G01J 2001/442 (2013.01); G01J 2001/4466 (2013.01)] | 20 Claims |
1. A light receiving device comprising:
a light receiving element that generates a signal in response to reception of a photon;
a readout circuit that reads out a signal generated by the light receiving element; and
a protection circuit that is provided between the light receiving element and an input end of the readout circuit and protects a circuit element of the readout circuit from overvoltage.
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