西安交通大学-杨建国教授力作,高清。以下是部分目录 前言 ...........................................................................................................................................................................8 1. 放大器定义、分类和选择使用....................................................................................................................... 9 1.1. 放大器定义 .................................................................................................................................................................9 1.2. 放大器的全家谱..........................................................................................................................................................9 晶体管 ............................................................................................................................................................................................................... 9 运算放大器...................................................................................................................................................................................................... 10 运放的渊源,以及必要的数学分析...................................................................................................................................................................................... 10 全差分运放的诞生................................................................................................................................................................................................................. 13 功能放大器...................................................................................................................................................................................................... 14 仪表放大器 ............................................................................................................................................................................................................................ 15 差动放大器 ............................................................................................................................................................................................................................ 16 程控增益放大器..................................................................................................................................................................................................................... 17 压控增益放大器..................................................................................................................................................................................................................... 18 隔离放大器 ............................................................................................................................................................................................................................ 19 1.3. 选择放大器的原则....................................................................................................................................................20 2. 运算放大器的关键指标详解......................................................................................................................... 21 2.1 输入失调电压(Offset Voltage,VOS) ......................................................................................................................21 2.2 失调电压漂移(Offset Voltage Drift) .......................................................................................................................22 2.3 输入偏置电流(Input bias current, IB) .................................................................................................................23 2.4 输入失调电流(Input offset current, IOS) .............................................................................................................24 2.5 关于失调和偏置的总结............................................................................................................................................25 2.5.1 0 输入时怎么计算放大器的实际输出? ............................................................................................................................... 25 2.5.2 易受影响的电路 ..................................................................................................................................................................... 27 2.5.3 如何克服它们的影响 ............................................................................................................................................................. 28 2.6 噪声指标(Noise) ..................................................................................................................................................29 2.6.1 初识噪声................................................................................................................................................................................. 30 在时域构造一个看似混乱的波形.......................................................................................................................................................................................... 30 构造一个真正的噪声............................................................................................................................................................................................................. 31 用傅里叶变换分析噪声 ......................................................................................................................................................................................................... 32 怎样衡量噪声的大小............................................................................................................................................................................................................. 33 噪声的电压密度曲线............................................................................................................................................................................................................. 36 2.6.2 最简单的运放的噪声模型 ..................................................................................................................................................... 37 2.6.3 UN_I 的噪声密度及噪声有效值计算....................................................................................................................................... 38 1/f 噪声密度及噪声有效值计算............................................................................................................................................................................................. 39 白噪声密度及噪声有效值计算.............................................................................................................................................................................................. 39 总噪声密度和总有效值计算.................................................................................................................................................................................................. 39