Understanding Operational Amplifier Specifications--sloa011b

1 引言...........................................................................................................................................................................................3 1.1 放大器基础知识.................................................................................................................................................................. 3 1.2 理想运算放大器模型...........................................................................................................................................................3 2 同相放大器................................................................................................................................................................................5 2.1 闭环概念和简化.................................................................................................................................................................. 6 3 反相放大器................................................................................................................................................................................6 3.1 闭环概念和简化.................................................................................................................................................................. 7 4 简化运算放大器电路图..............................................................................................................................................................8 4.1 输入级.................................................................................................................................................................................9 4.2 第二级.................................................................................................................................................................................9 4.3 输出级.................................................................................................................................................................................9 5 运算放大器规格.........................................................................................................................................................................9 5.1 绝对最大额定值和建议运行条件.........................................................................................................................................9 5.2 输入失调电压....................................................................................................................................................................10 5.3 输入电流...........................................................................................................................................................................10 5.4 输入共模电压范围.............................................................................................................................................................11 5.5 差分输入电压范围.............................................................................................................................................................12 5.6 最大输出电压摆幅.............................................................................................................................................................13 5.7 大信号差分电压放大系数..................................................................................................................................................14 5.8 输入寄生元件....................................................................................................................................................................14 5.9 输出阻抗...........................................................................................................................................................................15 5.10 共模抑制比..................................................................................................................................................................... 15 5.11 电源电压抑制比.............................................................................................................................................................. 16 5.12 电源电流.........................................................................................................................................................................16 5.13 单位增益下的压摆率.......................................................................................................................................................16 5.14 等效输入噪声..................................................................................................................................................................16 5.15 总谐波失真加噪声...........................................................................................................................................................17 5.16 单位增益带宽和相位裕度................................................................................................................................................18 5.17 稳定时间.........................................................................................................................................................................20

下载次数 0次 资源类型 应用文档 上传时间 2023-10-17