| 摘要 |
PROBLEM TO BE SOLVED: To stably reduce reset field-through noise without receiving influence of the variation of the characteristics of a transistor nor generating whisker pulse noise. SOLUTION: A charge transfer device is provided with floating diffusion 23 which converts signal charges transferred from a CCD 21 into a voltage, a MOS transistor 24 which discharges the signal charges accumulated in the diffusion 23 based on a reset pulseϕR, and a source follower 31 which performs current amplification on the voltage at a charge injecting point P. The transfer device is also provided with another source follower 32 which performs current amplification on the output voltage of the source follower 31 when a load is changed based on the reset pulseϕR.
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