Light detection circuit and security chip

The utility model relates to the technical field of integrated circuits, and discloses a light detection circuit comprising a photoelectric conversion module configured to convert received photons into current signals; the amplification module is configured to amplify the light sensing current generated by the photoelectric conversion module; the comparison module is configured to compare the amplified photosensitive current with the reference current and output a comparison signal; the high-temperature electric leakage counteracting module is configured to counteract the leakage current generated by the photoelectric conversion module at high temperature; wherein the current signal of the photoelectric conversion module comprises light sensing current and leakage current. The circuit can more effectively counteract the leakage current generated by the photoelectric module and improve the problem of high-temperature pre-alarm. The utility model also discloses a security chip. 本申请涉及集成电路技术领域，公开一种光检测电路，包括：光电转换模块