| 摘要 |
According to an image sensor disclosed, a pixel circuit includes a photo-diode 14 for generating a photo-electric conversion voltage which corresponds to an input optical level, a transistor 11 which is activated in response to a Reset signal RST, to initialize the photo-diode 14 from a power supply VDD, a transistor 12 which, when connected between the power supply VDD and a bit line BL, amplifies a photo-electric conversion voltage and outputs it onto the bit line BL, and a transistor 13 which is activated by a word-line readout control signal WL, to interconnect the transistor 12 and the bit line BL, in which the transistor 11 is of a depletion type.
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