im so addicted to the lectures that i was teaching my cat to bias a FET in saturation in my dream.

This chap should get a nobel prize for for sharing knowledge and making such a big impact on peoples lives. He is empowering people in the world of electronics in a way that very very few can. I have never come across a lecturer like him either online or in the real world. Thank you professor.

This time don't leave us begging for more. We have waited for a long time for these lectures. You are amazing. You make it look all easy and interesting unlike others. Thanks for your affection towards us

01:25 - Intro and review of Electronics I and II 10:28 - Examples of Circuits of Interest 14:45 - Current Source with MOSFETs 24:07 - Improving Current Sources with Degeneration 33:20 - We need a device that can degenerate but does not follow Ohm's Law - That offers same or higher incremental resistance - That will serve as an negative Current-Voltage feedback element 39:20 - Fundamental Property of Cascode 42:40 - Double-Cascode 45:00 - What happens when the widths of transistors in a cascode are doubled?

These are by far an away some of the best lectures I've attended. Very rarely has a professor been able to keep me interested in the content while also being so thorough. Thanks!

Thanks a lot Prof. Razavi for hearing out our requests and taking out your time for making this video lectures for free.

# KING OF ELECTRONICS IS BACK..... very fortunate to have him again..

Thank you so much for making these videos. These videos are the best resouce for building a good understanding of transistor circuits I've been able to find on the internet.

Boss is back in action.....thank you sir for the lectures

He is back! Thanks prof. Razavi

Thanks for being alive in this century!!!!! Oh professor, my professor!!!

Thank you very much, Mr. Razavi, or should I say king of us all? I cannot sufficiently express how much I like your books and video lectures. You love electronics and it shows at every second of your programs.. Needless to say, we all hope for electronics-3.. Best regards from Turkey!!

Thank you dear Prof. Razavi for your valuable efforts! Also big thanks to you Dr. Kong for uploading the videos. These lectures are priceless!

easily the best electronics 2 class on youtube !!! Thank you soo much. these videos are very helpful !!

This is why we need true expert to teach this subject. I never knew the true reason till now. Everyone else gave unnecessarily complex and confusing reasons. Thanks Prof. Razavi!

Thank you for starting new series.You're great .

He's back😎 Love from India

Brilliant teaching. This is a refresher for me but I wish you were my professor while I was pursuing my MSEE degree and took a class on Analog IC design at a university in the Chicago area. I love Dr. Razavi’s RF Microelectronics textbook.

I read his book, fell asleep. I found his videos on KZfaq, now I can't sleep! Thank you , professor!

really i have never seen any teacher explaining like prof. razavi but what i like to say is thanks million times prof. razavi i wish long and health life and request to continue helping hungry the students for your knowledge.

Professor at my heart Thank U for coming back

The amazing lecturers. Thanks for uploading!

Perfect expression. Thank you Mr. Razavi, you are the best.

Sir, you are an incredible Professor. I truly thank you from my heart.

I am in love from the first lecture itself, but I can not comment on every lecture because viewing ur lecture seems more important than my comment but I really feel very good to see people like u, who put there whole life efforts knowledge to share so effectively.. ur all-time student. :)

sir i beg you please cover the video lectures on all the topics mentioned in your book example, oscillators, efficiency of amplifiers, etc.....🤧🤧😭😭😭you have no idea how much a life saver these lectures are. The only reason that I passed my semester is because of you.. i have no words to express my gratitude believe me 🙏🙏🙏🙏🙏 Thankyou very much.

Great books and wonderful lectures. Thank you Prof. Razavi!

Thanks a lot sir for making Electronic- 2.

this man is a legend i am watching these lectures for fun now

Thank you Sir! You are amazing! And thank you Long Kong for posting these video lectures. We are miles away but i still find connections between us. I wish that Prof. Razavi give video lectures on Design of Analog CMOS ICs. It would be great! :)

Aaaaaand He's Back Thank You Sir for your efforts

I always feel a pang of sadness every time Prof. Razavi says time's up. I just want more and more of his lectures.

Legend, the master of Education. Never before , ever after student experience

Dear Prof. Razavi, You are very different from many other lecturers on electronics, because you love what you teach.. And we are your devoted students, because we love what you teach.. We also love your style.. I beg on my knees: Please continue.. There are so much more in your mind to teach us..

Thank you very much, Professor Razavi !!

Thank you, the great master Razavi.

Sir you made my day. lots of love and prayers for you ❤️🌹

Glad to see Electronics 2!!!

Awesome! Let the learning continue.

Amazing proffesor. He makes thinks so comprehensive and simple that anybody can follow. Congratulations for sharing this knowledge.

Without Professor Razavi , understanding analog would have been impossible for some..Thank you sir

One of the best lecture i have heard. Love from india

Awesome ! So excited .... Keep it up sir.

Excellent Work Sir they really help out a lot in concept building

Professor you really save my day... I can't wait to enjoy the journey of Electronics II with you. Lots of LOVE from Taiwan.

Excellent Contribution.

You gave meaning to my live!

The best electronics lecture. Thank you very much for sharing your knowledge

mesmerizing, couldn't stop the video for sec

God of electronics is back,i respected all the teachers but they should learn from sir how to teach and deal with the subject.. Thank you sir, it will helpful if you teach communications subjects in this manner.

Thank you very much for free but invaluable lecture!

Thank you very much was waiting for this long time

Thanks a lot sir for your benevolence.

A beautiful presentation.

Thank you very much sir, great lectures !

Excellent !! No word😊😊😊😊

Look who's back!

Prof is back with same Outfit (same color shirts :p).

the music is better than before!

The best for ever, prof Razavi

Thank uu so muchhh razavi sirr... Much waited video lectures👌🙌🙏

amazing

Phenomenal Lecture

无敌👍 gooood book and gooooood professor

LEGEND!!

I love the way he is teaching

The god is back!

Thank You very much sir...for this wonderful lecture.

very good lecture, thanks!

Razavi is the man.

Grateful for the lessons Only reason I just passed my exams bless👍

Afarin Ostad

Thank you Prof Razavi

Finally, I like Analog.

Thank you prof. Razavi for electronics-2 lecture series

Thank you very much sir for making this videos

you save my midterm！！！！！！

what a simple genius

Your teaching is excellent sir. But please do take care of the Noise!!

Excellent lectures

i think you're the best teacher in the world

India is missing these type of legends !! ..oh god, pls in next birth make me classroom student of razavi sir ..plss god...

omg! i don't knowwhat to say but thank you!!!!!!!!!!!!for saving me

why does he always put such bangers at the start

This dude is straight awesome bruh

thanks a lot sir

Thankful and Grateful to "Mr. Kong" for the upload and to "Mr. Razavi" for the lectures.

M1 is an amplifier (common gate) and therefore (for low frequency operations) it should be operating in moderate/weak inversion to maximise its gm for a given current. M2 is your main mirror device which should be in strong inversion to improve random offset (i.e. mismatch). Both devices must be in saturation. To achieve the above, usually M1 has a large W/L ratio (and L can be very small). M2 has a large L since mismatch is inversly proportional to L (for a fixed current), so you can simply push M2 in strong inversion by setting the W to something small (technology dependent) and increasing the L to whatever size or speed limitations you may have. I am not sure why many books assume that the devices should be the same or even identical.

Could you provide higher level courses covering Two and three stage op-amps, ADCs, DACs, PLLs..etc?

execellent lecture

Thanks You Professor

God of electronics

Thank you

Thank you so much sir for making electronic 2 lectures these videos are really helpful for me making concept better

Thanks dr.razavi

hi doctor razavi where we can find the note that u save it in smartboard in this course??? please help us

킹갓 라자비 센세..

I love him too

in the Cascode version of the current source in the SS model we replaced M2 with its output impedance r02 as the equivalent degenerating resistor. I am not sure about the effect of r02 on the limit of collapsing into Triode if we try to increase r02 by selecting M2 with a lower Lambda for instance (knowing that r0=1/(lambda*Id)). Is it going to be the same effect as with degenerating using Rs (normal resistance). we went to M2 in place of Rs to avoid adhering to Ohms law but if we replace M2 with r02, are we not going to adhere to ohms law, hence reducing the saturation region which means restricting the voltage range variations this current source can handle before leaving Saturation.

can anyone provide the links to the other lecture series mentioned on the last slide (min 46:45)