| 摘要 |
<p>In a floating diffusion output type or a floating gate output type charge-to-voltage converter, the floating diffusion or the floating gate (1) is coupled to one or more diffusion regions (6) by means of one or more switch elements (7, 8; Q1, Q2), and such elements are selectively turned on or off (PG1, PG2) in such a manner that the charge-to-voltage conversion factor is raised to obtain a great voltage amplitude when a small quantity signal charge is input, or the conversion factor is lowered to obtain a small voltage amplitude when a large quantity signal charge is input. <IMAGE></p> |
