| 摘要 |
PROBLEM TO BE SOLVED: To provide an amplifier that causes an output level to reach a predetermined level without going beyond the predetermined level when switching the output level.SOLUTION: An amplifier 10 includes: a differential amplification circuit 12 for outputting from an output end 12M a magnitude of voltage depending on a difference of the magnitude of a fixed voltage supplied to a gate of an NMOS transistor 12E from the magnitude of a voltage supplied to a gate of an NMOS transistor 12F and divided by a voltage divider 12K connected in parallel with a capacitor 12L connected to the output end 12M; and a control section 14 for, when causing the output level of the output end 12M to reach a predetermined level, controlling the voltage divider 12K such that the output level reaches the predetermined level in multiple stages. |
