| 摘要 |
An output circuit for sequentially receiving and converting charge collected in the photoelements of an image sensor and converting such charge into an output voltage. The output circuit includes a buried-channel LDD transistor having gate, source and drain electrodes. The source electrode provides a floating diffusion. When the transistor is turned off, a potential well is provided in the floating diffusion which collects charge. An output source-follower amplifier also employing buried-channel LDD transistors is connected to the floating diffusion and produces the output voltage.
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