That was, BY FAR, the best Op-Amp explanation video I have ever seen. Thank you!

Thanks for these videos. I'm now a retired hobbyist and I've been modelling these circuits in a simulator as well as wiring them up on breadboards. I remember that as an impatient and impulsive undergraduate decades ago, although I was very keen to learn, I never could get my head around op-amps and I eventually flunked out out of electronics to do something else. In those days, of course, there was no internet and no circuit simulators. I do regret the wasted opportunity to learn something that could have given me a completely different career.

When I studied opamps 30 years ago in an electronic course I was fascinated by the virtual ground concept.

This honestly helped me understand op amps wayyyy better than any other videos

I've been using opamps for 40+ years as a hobbiest; this was still a nice review!

No offense to your colleagues, but this video is educational on another level.

I finally found and expert with practical lab examples . I really apreciated . 🏆🏆🏆

I really enjoyed this. Doing the four comparisons together and stepping through them was very clear and concise. It's definitely helped me understand the subject better. Thank you.

Easy to digest explanation. Thank you! 🙂 I really like that you split more example circuits into another video and kept this to a bare minimum of 4 basic op-amp configurations 👌

This is such a clear explanation from someone who knows his subject. Keep them coming

The high level explanation of the op amp stages was really helpful. Thank you for the video!

I'm glad you showed the concept. Good video the schematics confused me for second.

Absolutely brilliant, I'm an absolute beginner, this is so interesting. Thank you!

Very good explanation. Thanks.

Honestly, thanks for the quick show & tell regarding the Dual Power Supply. Being a retired theorectical mathematician & only an occasional electronics hobbyist that wants to build a instrument pickup pre-amp for the stringed instruments I build until you had demonstrated the structure of Dual Power I had assumed in my experimentation that the typical battery circuit of +/- was being depicted in diagrams regarding the lm741. Thus I had not been able to get the Lm741 I was experimenting with to act in the non-inverting scheme at all. Once I saw what you were doing I quickly made two 6 volt battery packs and turned them into a Dual Supply of (6+, Virtual ground, 6-). I then reconnected the lm741 under both schemes and wala I had both a non-inverting then inverting amplifier. The interesting thing is that often many things are left out in explanations that depending on the audience need to be included a bit like anyone's first lesson in computer coding where it's drilled in to the student that what has meaning to you is not sufficient if the computer is to output the aim.

Thank you, Derek. Very clear and informative videos. You have plenty of knowledge. Greetings from Russia! 🙋

Hey Derek, still my favorite Tattooed electrical engineer! If I added a Schmitt trigger to the output of the comparator, That would in fact solve the issue of the slue rate correct? By ALMOST creating a much cleaner square wave. I think. Just the new guy here!! Thanks again for all the great training you and your crew provide!

Excellent video, expanding my understanding nicely. A little more technical than some of the other basic op-amp videos I've watched but one can't stay in the shallow end of the pool forever.. :)

I really appreciate your video .. you make it easy for me to understand thanks 👍👍👍👍

Good video and nice to see a working Flux Capacitor in the background!

This was an outstanding video. Looking forward to the projects!

Awesome video!! Very nice and clear. Thank you very much!!

Thanks especially for the hands-on part. It is easy to get overwhelmed with the theory and reading about ideal characteristics, but it is completely a different feel to see things in actual work. Also liked the internal op-amp diagram and condensing them to a more digestible diagram. Excellent quality and great effort put into this. Thanks a lot.

This so amazing I did know it is a comparator just because you feed different voltage rating at the input pins

Looking forward to your follow up video. Hope you will cover which op amps are useful for hobbyists, and how to select them.

Excellent presentation !! Great content - easy to follow delivery !! Thanks !!!

Hi. Fantastic as usual. I would like to hear and learn about instrumentation amplifier and why they are diffrent from op amps.

Oh my goodness! I think I finally understand OpAmps!

That was very concise and clear. Thank you.

Thanks for the explanation, but I caught a couple of errors in the diff amp and current sources: The diffamp you drew should be using PNP input BJTs for the INV and NON-INV inputs and your inputs are in reverse. The current sources should have 2 diodes at the base, because Iout = Vb-Vbe/Re = Ve/Re. In your schematic Ve=0, because Vb is completely consumed by Vbe because Ve=Vb-Vbe and Vbe=Vf of the diode. At the beginning of the video you mentioned circuits we would like to see. I've been looking for an accurate voltage gain stage for a low voltage (low mV range) DC signal, that can be implemented with BJTs. With just the diffamp, I've only ben able to get a voltage gain of 5Vi, if I attempt anything above that, the signal hits a ceiling of about 1.4V and I'm trying to keep the component count to a minimum.

Thank you.🙌

Very interesting and well done presentation. Would you do a video of MCP1406 or MCP1407 mosfet drivers?

I have a question regarding the LM741 is it suitable for signal amplification from 50 microvolts like 50 times and why its not used much in biological signal amplifiers. And why using the much expensive instrumentation amplifiers?

I wonder if anyone can shed some light on my question. In 1974, as a trainee, I was taught by an old retired instructor that Op Amps were called that because they were the practical result of designers trying to design the perfect amplifier. Such an amp would have infinite input impedance, zero output impedance, infinite gain, etc. So it was named an "Operational" amplifier as opposed to a theoretically "ideal" amplifier. However, I have seen on another youtube channel that they were so named because they can do mathematical operations. Does anyone know the correct reason for the name of Operational Amplifier? No guesses please, and if possible can you quote your source. Thanking everyone in advance for your input (non-inverting).

To separate the portion of rise time that results from high gain on a tiny portion of the sine wave, from actual slew rate, throw a square wave on the non-inverting input and measure the rise time on the oscilloscope. That's your slew rate. High gain on a sine wave might not be hitting the slewing limit of the op-amp.

comparators usually have an open collector on the output so a resistor must be used to limit the current sinking into the IC. I'm using an opamp with a pnp BJT to build a linear voltage regulator. LM324 or LM358 have an output current limit in the datasheet. Does this mean that I have to use a resistor on the output of an opamp when driving a BJT?

Sir I'm taking the liberty to request you to please make a detail video on Remote Control circuit's used in the RC toys cars etc , how they work ,what is the function of every components used to build the RC circuit , how the signal is transmitted from transmitter to receiver to control the motors used in the toy Please do it Thanks

It seems you use a solderable BNC connector to "break" out the signals from the sig gen to the breadboard. You can see the center lead of the BNC connector going the breadboard, but the shield/GND lead is not clearly visible. It seems to go to GND, but it's not clear if it is 50 ohm terminated or not. Can you give a clearer picture?

Great video. Where can I learn how to properly choose the resistance values? (Since there are several options, including the option of using potentiometers)

I made a buffered phase shift oscillator with Lm324 . Gain of 8.333 . I used all op amp of the quad but I’m having issues identifying where to connect the non inverting pin 3 of the IC

Is the non inverting pin 3 of inverting configuration connected to negative voltage of input voltage or to zero volts

Thanks!

how about the Vishay IL300 linear optocoupler as a plus and minus 0 to 10 vdc in and out. most of the videos seem to just go for positive 0 to 10 vdc not both. 🧐great video, thanks a lot. i think it would be interesting to use the 741 op-amp or something like it for long term parts in the future.

thank u for very info video sir. i look into biasing or feedback design for particular IC D2822

What would happen if we solder discrete parts to IC dual opamps to get better quality?

It is great video . Thank you

I have a whole box of Op Amp, the problem usualy is that when I build a project I don't have the specific Op Amp I need. I would be very interesting to know how to fin an equivalent or substitue for an Op Amp

Are there fundamental substrate-level tradeoffs between slew rate/bandwidth and noise? I've noticed that jellybean op amps tend to be spec'ed for either one or the other, but not both.

Creative video, thanks :)

hey man. I'm looking to boost a 4 volt signal for a door bell that goes to an old celestion 12 inch amp from the 70s. there's no power outlet near it is why I ask and the button to speaker distance is about 50 meters. I was thinking an opamp to buffer circuit that boosts the 4 volt signal to about 10. which ic should I use. the amp looks like the day it was bought 40 years ago with perfect tweed covering. haha the makerspace is in an old catholic girls school and the inherited the old guitar amp. well it's not a proper amp as it only has a mono jack input hence my question. it only needs to be about 50 percent louder. thanks brother.

Great

Very nice video. What missing for me - doesn't explain 2 things: 1. Comparator oscilator where is use possitive and negative feedback 2. Trick's where on the feedback is use resistor plus cappacitor. They are in parallel between self and even I dont understand what for. Simply moar pls about a bit advanced opamps circuits :)

How can I join elements 14 community?

I have a question. What makes open loop gain infinite in ideal op amp?

Sir is it possible to make the differential amplifier

Hello, what is the input impedance of an LM358 op amp? thanks

How about going over FPGAs.

what about a Digital OP Amp... port.c=(1000*(port.a-port.b));

My uncle Jamal uses op amps for Audio amplification

Reason way I like you so much

The beautiful woman whose name is Carin tought something like this.

I didn’t follow any of this

This is almost useless for beginners