TI, op-amp design guide

liana3237

for everyone use:

1 The Op Amp’s s Place In The World . . . . . . . . . . 1-1
2 Review of Circuit Theory . . . . .. . . . . . 2-1
2.1 Introduction . . .  . . . . . . . . . . 2-1
2.2 Laws of Physics . . .. . . . . . 2-1
2.3 Voltage Divider Rule . . . . . . . . 2-3
2.4 Current Divider Rule . . .. . . . . . . 2-4
2.5 Thevenin’s Theorem . . . . . . . . . 2-5
2.6 Superposition . . .. . . . . . . . . 2-8
2.7 Calculation of a Saturated Transistor Circuit . . . . . . 2-9
2.8 Transistor Amplifier . . . . . . 2-10
3 Development of the Ideal Op Amp Equations . . . . . . 3-1
3.1 Ideal Op Amp Assumptions . . . . . . . . 3-1
3.2 The Noninverting Op Amp . . . . . . . . 3-3
3.3 The Inverting Op Amp . .  . . . . 3-4
3.4 The Adder . . . . . . . . . . . . 3-5
3.5 The Differential Amplifier . . . . . . . . . 3-6
3.6 Complex Feedback Networks . . . . . . 3-7
3.7 Video Amplifiers . . .  . . . . . . 3-9
3.8 Capacitors . . . . . .. . . . . . . . . . . . . . . . . . 3-9
3.9 Summary . . . . .. . . . . . . . . . . . . . . . . . . 3-11
4 Single Supply Op Amp Design Techniques . . . . . . . . . . 4-1
4.1 Single Supply versus Dual Supply . . . . . . . . . . . . 4-1
4.2 Circuit Analysis . . . . . . . . . . . . . . 4-3
4.3 Simultaneous Equations . . . . . . . . . . 4-8
4.3.1 Case 1: VOUT = +mVIN+b . . . . . . . . . . 4-9
4.3.2 Case 2: VOUT = +mVIN – b . . .. . . . . . . . . 4-13
4.3.3 Case 3: VOUT = –mVIN + b . . . . . . . 4-16
4.3.4 Case 4: VOUT = –mVIN – b . . . . . . .  . . . . . 4-19
4.4 Summary . . . .  . . . . . . . . . . 4-22
5 Feedback and Stability Theory . . . .. . . . 5-1
5.1 Why Study Feedback Theory? . . . . . . . . . 5-1
5.2 Block Diagram Math and Manipulations . . . . . . . . . 5-1
5.3 Feedback Equation and Stability . . . . . . . . . 5-6
Contents
iv
5.4 Bode Analysis of Feedback Circuits . . .  .  . . . 5-7
5.5 Loop Gain Plots are the Key to Understanding Stability . . . .. . . . . 5-12
5.6 The Second Order Equation and Ringing/Overshoot Predictions . . .  . . . 5-15
5.7 References . . . . . . . . . . . . . . . . . . 5-16
6 Development of the Non Ideal Op Amp Equations . . . . . . .  . . . . . 6-1
6.1 Introduction . . . . . . . .  . . . . . . . . . . . . . . . . . . 6-1
6.2 Review of the Canonical Equations . . . . . . . . . . . . . 6-2
6.3 Noninverting Op Amps . . . . .. . . . . . . . 6-5
6.4 Inverting Op Amps . . . . . .  . . . . . 6-6
6.5 Differential Op Amps . . . . . . . . . . . . . 6-8
7 Voltage-Feedback Op Amp Compensation . . . . .  . . . . . . . . . . . . . 7-1
7.1 Introduction . . . . . . .. . . . . . . . . . . . . . . . 7-1
7.2 Internal Compensation . . . . . . . . . . . . . . . . . 7-2
7.3 External Compensation, Stability, and Performance . . . . . . . 7-8
7.4 Dominant-Pole Compensation . . . . . . . . . . . . . . . 7-9
7.5 Gain Compensation . . . . . . . . . . . . . . . . 7-12
7.6 Lead Compensation . . . . . . . . . . . . . . . 7-13
7.7 Compensated Attenuator Applied to Op Amp . . . . . . . . . 7-16
7.8 Lead-Lag Compensation . . . . . .. . . . . . 7-18
7.9 Comparison of Compensation Schemes . . . . . . . . . . . . . . . . . 7-20
7.10 Conclusions . . . . . . . . . . . .. . . . . . . . . . . . . 7-21
8 Current-Feedback Op Amp Analysis . . . . . . . . . . . . . . . . 8-1
8.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.2 CFA Model . . . . . . . . . . . . . . . . . . . 8-1
8.3 Development of the Stability Equation . . . . . . . . . 8-2
8.4 The Noninverting CFA . . . . . . . . . . . . . 8-3
8.5 The Inverting CFA . . . . . .. . . . . . . . 8-5
8.6 Stability Analysis . . . . .  . . . . . . . . . 8-7
8.7 Selection of the Feedback Resistor . . . . .. . . . . . . 8-9
8.8 Stability and Input Capacitance . . . . . . . . . . . . . 8-11
8.9 Stability and Feedback Capacitance . . . . . . . . .  . . . . . . 8-12
8.10 Compensation of CF and CG . . . . . . . . . . . . . . . . 8-13
8.11 Summary . . . . . . . .  . . . . . . . . . . . . . 8-14
9 Voltage- and Current-Feedback Op Amp Comparison . . . . . . . . . 9-1
9.1 Introduction . . . . . . . .9-1
9.2 Precision . . . . . 9-2
9.3 Bandwidth . . . . . . . . . . . 9-3
9.4 Stability . . . . .  9-6
9.5 Impedance . . . . . . . . . . . . . . . . . . . 9-7
9.6 Equation Comparison . . . . . . . . . . . . . 9-8
Contents

liana3237

自己的沙发，
自己坐。
舒服，
阿。

liana3237

xi xi, 不错啊。。。
谢谢大家顶啊。。。。。

lawrence312

谢谢楼主分享下下来看看

sp065441

謝謝分享,好用的手冊

nchumitmatt

感謝分享~~~

jackaq

感谢分享

martian618

感谢分享！