3
目录
作者Bruce Trump介绍 .............................................................................................................................1
写在前面 .......................................................................................................................................................2
1 将运算放大器用作比较器——此举可行吗? ...................................................................................... 5
2 仪表放大器——可避免常见的设计陷阱 .............................................................................................8
3 差动输入钳位——它们影响您的运算放大器电路吗？ ..................................................................10
4 电流源（以及电流阱）——对顺从电压范围的理解 ......................................................................12
5 输入偏置电流消除电阻——您真的需要它们吗？ ..........................................................................14
6 运算放大器电压范围——输入和输出之解疑释惑 ..........................................................................16
7 差动放大器——良好匹配电阻器不可或缺的器件 ..........................................................................19
8 构建属于你自己的差动放大器 ——有时1%电阻就已经足够了 .................................................21
9 电源旁路——SPICE 仿真与现实的差距 ...........................................................................................24
10 为什么运算放大器会发生振荡—两种常见原因浅析 ....................................................................26
11 “驯服”振荡运算放大器 ..................................................................................................................28
12 “驯服”振荡—电容性负载问题 .....................................................................................................30
13 “典型值”——在产品说明书规范中到底是什么意思？ ...........................................................................................32
14 热电耦——每一个模拟设计人员都应该熟知的组件 ....................................................................................34
15 靠近接地摆动——单电源工作 .........................................................................................................36
16 “我需要高输入阻抗！” ..................................................................................................................38
17 失调电压与开环增益——它们是“表亲” ....................................................................................40
18 光电二极管启蒙 ..................................................................................................................................42
19 用SPICE模型仿真失调电压 ...............................................................................................................44
20 消失的失调电压调整引脚 ..................................................................................................................46
21 SPICE仿真——Bob Pease会说No吗？ ........................................................................................48
22 如何用好电位器？ ..............................................................................................................................50
23 运放稳定性的SPICE仿真 ...................................................................................................................52
24 匹配，匹配！双通道运放有多相似？ .............................................................................................54
25 输入引脚的过电应力(EOS)保护 .......................................................................................................56
25 CMOS放大器和JFET放大器的输入偏 置电流 ...........................................................................58
27 运算放大器：单位增益稳定放大器和非完 全补偿放大器 .......................................................60
28 如何处理未使用的运放 ......................................................................................................................62
29 温度对输入偏置电流的影响 ..............................................................................................................64
