| 摘要 |
PROBLEM TO BE SOLVED: To provide an amplifier circuit comprising an NMOS transistor having low drain breakdown voltage and an NMOS transistor having high drain breakdown voltage connected in series, where a drain of the NMOS transistor having the low drain breakdown voltage is not destroyed.SOLUTION: In an amplifier circuit, a clamp circuit for restricting drain voltage is provided in a drain of an NMOS transistor having low drain breakdown voltage. |
