INFORMATION ACQUISITION DEVICE AND OPTICAL COMMUNICATION SYSTEM

摘要

At least one cell (X ij ) implementing a sensor array embraces a photoelectric-conversion accumulation element (9) configured to generate and accumulate signal charges, a potential detection circuit (14) configured to detect the signal charges generated by the photoelectric-conversion accumulation element (9) as a potential change, and an amplification circuit (15) configured to amplify the potential change and to transmit to an output-signal line (B j ). The photoelectric-conversion accumulation element (9) and the potential detection circuit (14) are connected in series between a first potential terminal (T1) and a second potential terminal (T2), and the potential detection circuit (14) has an insulated-gate transistor (Tr14), which detects the potential change in a weak inversion state, in a period when an optical-communication signal is received.