| 摘要 |
PROBLEM TO BE SOLVED: To provide a solid-state image sensor having a multi-stage source follower type amplifier, a high gain, and a broad band. SOLUTION: The solid-state image sensor is composed of a three-stage source follower type amplifier. Source follower type amplifiers 210, 220, and 230 at the respective stages are composed of respective n-channel driver transistors D21, D22, and D23 and respective n-channel load transistors L21, L22, and L23. Each drain of the driver transistors D21 to D23 is connected to a power source voltage VDD of about 12V and each back gate (third well region) of the driver transistors D21 to D23 is connected to the source of the driver transistor D23. COPYRIGHT: (C)2005,JPO&NCIPI
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