These are the last 4 videos of Razavi's Electronic Circuits 1 video lectures. All 4 are about Op Amps. They mostly do not depend of the previous video lectures. He starts with very simple explanations, but some parts are quite advanced. For example, he gives not only the equation for the "textbook" integrator (the one that will not work in reality because of saturation). He also develops the equation for said integrator with an additional resistor in parallel to the cap. But even if you stick to the more simpler parts of his lectures, you can learn a lot - he takes his time to explain everything very thoroughly.

Lecture 42 Op Amp Circuits I

0:00 Introduction, Explanation of the term Operational Amplifier ( see this paper from 1947 by Ragazzini )

07:10 Introduction of the Op Amp

16:00 Fundamental properties of the Ideal Op Amp

18:20 Comparison with properties of a real Op Amps

22:30 Observations

30:00 Non inverting amplifier

46:18 Definition of Open Loop Gain vs. Closed Loop Gain

47:15 Quiz (For this you would need to know about MOSFETs)

52:50 Inverting Amplifier

1:00:00 Comparison Non inverting and Inverting configuration

Lecture 43 Op Amp Circuits II

0:00 Introduction, refresher of results of last lecture

4:10 Example of Application: Voltage Regulators (for more on this topic, please see the free chapter 9 of The Art of Electronics )

12:50 Unity Gain Buffer

24:00 Integrator

46:25 Cautionary note: The simple integrator that was discussed doesn't work as advertised in the lab (please see lecture 45 at 05:05)

47:35 Differentiator

52:30 Cautionary note: Differentiators amplify noise, use integrators instead if possible

53:40 Voltage Adder (Summer)

Lecture 44 Nonlinear Op Amp Circuits Op Amp Nonidealities I

0:00 Introduction, refresher of results of last lecture

05:10 Precision Rectifier

22:20 Logarithmic Amplifier

31:25 Quiz

36:50 Frontiers in Electronics: Discussion of circuit diagram of 741

40:30 Frontiers in Electronics: Using Op Amps for Filters

44:00 Overview of Op Amp Nonidealities

46:15 DC-Offset

Lecture 45 Op Amp Nonidealities II

0:00 Introduction, refresher of results of last lecture

05:05 Effects of DC-Offsets on Integrators - offset drives integrator into saturation

12:30 A Fix for the saturation problem

26:00 Input Bias Current

39:30 Effects on Input Bias Current on Integrator - integrator is driven into saturation

42:20 A fix for the problem above

45:10 Speed limitations of Op Amps, trade-off between gain and bandwidth

58:00 Slew Rate

You might also be interested in some recommendations for other resources on Op Amps.

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