Op-Amp Slew Rate Explained (with Examples)

Показать описание

In this video, the slew rate of an Op-Amp has been explained with solved examples.

What is Slew Rate:
It defines the maximum rate at which the output of the op-amp can change. (How fast the op-amp is able to respond)

Unit of Slew Rate: V/us

Different Op-Amp has different slew rate and the value of slew rate varies from 0.1 V/us to 1000 V/us.

So, depending on the application the op-amp with specific slew rate needs to be selected which prevents the distortion of the output signal.

Causes of Slew Rate in Op-Amp:

The internal compensation capacitor in the Op-Amp is the main cause of slew rate in every Op-Amp.
The value of Slew rate depends on the value of this internal compensation capacitor and the charging or driving current.

Power Bandwidth of the Op-Amp:
The maximum frequency (for large signals) up to which there will not be any distortion in the output is known as the Power bandwidth of an op-amp.

This power bandwidth of the op-amp (slew rate limited maximum frequency ) is defined for the large signal (in volts), while the unity gain-bandwidth product is defined for the small signals (in mV).

If the input frequency is more than this maximum frequency, then the output signal will start getting distorted. And this kind of distortion in output is known as the slew rate induced distortion.

The timestamps for the different topics covered in the video is given below:

0:19 What is Slew Rate of an Op-Amp?

2:31 Causes of Slew Rate in Op-Amp

4:12 Effect of Slew Rate on Pulse input

7:46 Effect of Slew Rate on Sinusoidal Signal

10:21 Example 1

11:30 Example 2

The link to the related videos on the op-amp:

Introduction to Operational Amplifier:

Inverting Op-Amp:

Non-Inverting Op-Amp:

Op-Amp Integrator

Op-Amp Gain Bandwidth Product:

This video will be helpful to all student of science and engineering in understanding the slew rate of the op-amp.

Follow me on YouTube:

Follow me on Facebook:

Follow me on Instagram:

Music Credit:

Рекомендации по теме

Комментарии

The timestamps for the different topics covered in the video is given below:

0:19 What is Slew Rate of an Op-Amp?

2:31 Causes of Slew Rate in Op-Amp

4:12 Effect of Slew Rate on Pulse Signal

7:46 Effect of Slew Rate on Sinusoidal Signal

10:21 Example 1

11:30 Example 2

ALLABOUTELECTRONICS

I don't understand where you find the time to make such high quality tutorials man, thank you so much

kwekker

Professor tech slew rate
But
I don't understand anything
Useful information
Bus when I see your video
I have no dout about slew rate
You give me great information sir 💯💯💯

AshishPanchala

Excellent, excellent video, really helped to clear many doubts I had about this concept during lecture. Took me a while to finish the video, but I have a much more thorough understanding of this now!

srishtikumar

Excellent video explaining the slew rate concept of op amp.
Thanks for making it so easy

varshabendre

Thanks for your explanation! It is very clear!

isaacexposito

Awesome. Best electronics tutorials on YouTube for sure

stuartmp

At 13:09, shouldn't the input square wave frequency be 500Khz, such that output will have a 250Khz triangular wave at 4V peak?

tomyangwang

Thanks! I love those crystal clear explanations!

MatheusSilva-dragon

Thanks for the explanation. It was very helpful. May the Lord Jesus bless you even more :)

rovermx

Thank you for the great videos they are really enlightening. Just a couple of questions lets say we make an op-amp how can i find the SR and how would i measure it?

lalacpp

Excellent explanation of the concept of OP-AMP slew rate. Thank you !

agstechnicalsupport

Sir! in 12:56, how did we find f=1/t=250kHZ from t=4 micro sec?

rupeshkumarjha

Very nice job explaining slew rate and its limiting\non-limiting effects on amplifier design specification. Many manufacturers don't include this spec in their manuals. Do you feel like this is due to a difficulty of their product to produce a clean signal throughout the designed 20-20, 000 Hz band or is there so few examples of op-amp response not meeting criteria that they feel there is no reson to list the spec.

brentb

Sir, I have got a doubt. Hope you will clear it. What I have actually understood is- In earlier opamps, there is a problem of instability and opamp may break into oscillations. So to avoid this, almost all new opamps are internally compensated . But this leads to reduction of gain even at very low corner frequency. So we add negative feedback which reduces gain and improves bandwidth because gain bandwidth product is constant. Is my understanding correct? Please let me know if I fail somewhere in relating all these things. And what is instability? Why is it happening? Please reply sir. Having an important interview.

urmilapathivada