| 摘要 |
The present invention aims at providing a photodetector capable of fast operation with inclusion of A/D converting circuits. With a photodetector 1, (K x M x N) photodiodes PDk,m,n are arranged in M rows and (K x N) columns in a photodetection unit 10, and processes (electric charge accumulation, CDS, filtering, and A/D conversion) regarding each of the (K x N) photodiodes PDk,m,n (k = 1 to K, n = 1 to N) of each row are carried out successively at each time T. Meanwhile, each of an electric charge accumulation operation in an integrating circuit 20m,n, a CDS operation in a CDS circuit 30m,n, a filtering operation in a filter circuit 40m,n, and an A/D conversion operation in an A/D converter 50m,n is carried out at each time (N x T). <IMAGE> |
