Thanks so much! The effort put into making this video is really appreciated.

@marianoaldogaston

8 жыл бұрын

+Applied Science yours are great too

@Thesignalpath

8 жыл бұрын

+Applied Science Thank you! :)

@maximus6884

2 ай бұрын

yes

Great vid. This is where you really rise above the rest. It's just a personal opinion but I think this is a good niche ... somewhere between the usual hobbyist stuff and the full-on university analysis lectures.

Now you are a dual Signal Path & I like it :)

@berni8k

8 жыл бұрын

+orbiter8 (John) Could say the signal path blog is now available with differential pair signalling.

@jaa93997

8 жыл бұрын

+berni8k well lets face it, none of their experiments would exist without the approval of the cat....

Somehow you having a brother that's just as brilliant as you is just blowing my mind. You guys are amazing and I appreciate and love the work you guys do more than you can imagine. Keep it up, and I hope you guys are staying safe!

Smartest EE brothers on KZread!

The only thing better than having a PhD in electronics is having a brother with a also PhD in electronics :)

After all those teardowns and other toturials this one is just fantastic especially the amount of enthusiasm for the subject And not to mention the 🐈

@maximus6884

2 ай бұрын

yeah

I never understood this subject in the university lecture. Thank you!^2

I learned this back in school a geologic epoch ago (well, some of it). But it was never explained this well. I appreciate the time that went into this video and wish all students could see it.

Well done guys. I'm going to have to watch this one a few times to get everything out of this as well as digging out my old college texts and notes. I have vague memories about Superposition. What's so nice about the internet we can pull up notes and review and go back and rewatch a segment of the video we have questions about. Your videos rank among the best as an invaluable asset. BTW stop beating on the cat.

Holy cow, hifi intro! I'd gotten so used to that recording of your screen. :)

I like your comment at the end about sharing this with other students at my university. The last time I was at university (Columbia) was 1969! Probably most of my fellow students are retired. Nonetheless it's just as interesting now as it was then, so thanks for doing it.

@maximus6884

2 ай бұрын

exactly.

Balanced feed is 3dB better signal to noise ratio! It is great to see expensive test gear actually used for a change. Some other bloggers just seem to collect gear to make their lab look pretty and act as advertising for the manufacturers.

Fantastic video. Worth the wait! I hope you have more of this style of videos planned, I've been missing my Signal Path fix!

This is fantastic. Please keep them coming, we want more videos like this one.

33:40 there is some extra capacitance at the amplifier input, this should be added to the photodiode source capacitace. This is one of the reasons the bandwidth is not exactly as predicted by theory(?).

Watched it all. Brilliant. Learned a lot. Thank you for your selfless devotion towards the edification of people like me

@maximus6884

2 ай бұрын

indeed

Please can you go over everything after " Hi, and welcome to the signal path "....Seriously, a bit above my current (no pun intended) level of understanding, but as you progressed I did start to get it and understood much more than I thought I would. great video and I am gonna continue to watch you back catalog...cheers.

Thank you for the great lesson. I hope you guys will teach us more.

Wow, complementary pair! :))

wow, the two of you together is simply superb, very well presented and well thought out, keep it up!

Excellent video! Clear explanations. Thank you for taking time to put together such a thorough coverage.

@maximus6884

2 ай бұрын

same feling

This was an excellent video! Thanks for this. So much material from such a simple circuit.

Double dhamaka - two geniuses in a single video ........ Excellent video on CMOS for analog applications ........ !!!!!! This video has prompted me to wipe dust off my Razavi :D

I love the equipment you used in this video. Very very educational topic, thanks

I thought I had eaten something very wrong when I heard the intro in full stereo and then saw two Shahriars. ;)

Mixing equations and cats makes this video especially relevant! Thanks!

Excellent video! Great dynamic with your brother on set

Very enjoyable, you two make a great duo. I hope we'll get to see Shayan more often in these videos. P.S. I really like that you fixed the intro clip.

Due to the physical nature of the device there is internal parasitic capacitance. The device will begin to oscillate when the fin crosses fout at the intercept point of 180* out of phase. You can see the sharp oscillation point on the scope. By using a compensation capacitor in the feedback path you can dampen the oscillation. Thus producing a more linear transition between I and V. I'm sure this might answer your question, if not ask your brother. Cool video as allways, look forward to the next one. Cheers.

@kraklakvakve

8 жыл бұрын

At which time in the video do you see oscillation? I am curious, but missed it...

@TKomoski

8 жыл бұрын

+kraklakvakve You can see the sharp oscillation @ 7:50 were Shahriar points it out.

you could say this channel went super shayan :)

Very well done. Thank you for another great lesson.

Hey guys nice video and cat, 70% of the video was spent on an inverter analysis but not much on tia

Very interesting topic, great job guys!

Very educational. Thank you

Ahhhhhh!!! There's 2 of them! Great video folks!

Your (plural) videos are simply excellent!!! Allow me one superficial suggestion regarding the titles, this and some others I've seen. Put the main topic first, for example : "CMOS Transimpedance Amplifier: Theory, Design and Characterization" This way I think you'll interest more viewers. With limited title space on video listings you need to inform the potential viewer of your content without requiring another click. Thanks

funky haired science dudes!

Wie habe come a long way when even people with a background in EE able to clone themself!

@jusaca01

3 жыл бұрын

German autocorrect detected :D

Guys, you are awesome, keep them coming!!!!!!

So, the intro sequence was finally fixed. Am I right in believing that it used to be filmed with a camera off of a screen? Inspired by this video, I will consider trying to make a linearized multiplier (aka ring modulator) circuit based on CD4000 series logic chips. 22:43 Nice static charge generator, btw!

@superdau

8 жыл бұрын

+Gameboygenius The old intro was that way on purpose. And as far as I remember no filming was involved for that, just effects.

@zaprodk

8 жыл бұрын

+superdau The "old" intro was the correct way, not filmed from a screen. He lost the video file, so that's why it was filmed off a screen. Have a look at the oldest videos.

@AureliusR

8 жыл бұрын

+Gameboygenius Yeah, if you go WAY back the intro was clearly digital. Then he must have filmed one of his old intros to replace the lost original. I meant to go back and download one of the old videos and extract the digital intro and send it to him but I never got around to it. Clearly he either re-rendered or did exactly what I said.

Love this video!

Hey this is a great video, thanks for making it guys!

Thanks for the detailed explanations. You make it easy enough for hobbyists to follow along too. Is it typical for the linear region of a CMOS switch to be near half Vdd?

A family of engineers :) Great job!

I like this topic! Any idea what identifier's manufacturer's use to name the KP(u*C) and W/L parameters in their datasheets?

Great video guys!

As much as I love you guys and this channel, I can't help but laugh at you saying you're doing to do a really simple experiment on a simple circuit, and then you use like $50 000 worth of equipment to do it!!! :P

@Thesignalpath

8 жыл бұрын

+Aurelius R It is true that we used expensive instruments to do it, but it can easily be done with very basic equipment as well.

@AureliusR

8 жыл бұрын

+The Signal Path Blog I know, just ribbing you guys a bit. Great content as always.

very cool video. two questions. 1. how does temperature effect the small DC characteristics if any. 2. is there any change over time of the small DC characteristics say from drift?

Excellent video, as always. Very cool to see your brother participating ! What software did you use to make these beautiful plots from the raw data coming from Kickstart ? Thanks

@shayanshahramian2911

8 жыл бұрын

+frigoblaster We used MATLAB to create our plots :)

Shariar, in future videos, could you attempt to get better focus on the scope screen? I know you're more looking to show the shapes of the waveforms which are very visible, but even at 1080P, I have difficulty reading any of the text measurements or display units on the screen.

what wil be Vout if in the last circuit around 33mins,the current source and capacitor is removed ,means without any input

YAY! - you fixed the intro music

Big thumbs up !

If one had $500.000+ worth of test gear...

Thanks for sharing

Did you upgrade your intro music :D ?

Nice Basic tutorial on TIA with an unbuffered CMOS Inverter presented by smart guys. However I was interested into in depth analysis of an OPA based TIA. Therefore the title is a bit misleading I think.

@Thesignalpath

8 жыл бұрын

+hugo schmeisser I don't understand what an OPA has to do with a TIA. An OPA is an optical component, TIA is an electrical component. OPAs sit on transmitter side, TIA on the receiver side...

👍👍

I want to design a high gain low offset opamp in 45 or 90 or 130nm tech from schematic, pre, post layout, drc, lvs, parasitics simulations. anyone please suggest open source tools to do this

Thank you Shayan jan. Don't you guys want to add ($ Thank you) ♥ option to your KZread channel? people can drop some well deserved coins without becoming a patron.

Answer to question: it is Miller Capacitor

23:41 - Apparently one of the several effects of connecting that feedback resistor was to cause my KZread to crash severely. :S

You could have Shayan do all the off-camera voiceovers for your videos and nobody would ever know... Wait, has he!? :D

@Thesignalpath

8 жыл бұрын

+MetalPhreakAU Ha!

Whoa - the laptop screen intro has finally been retired ;)

epic

You are so similar, like 1n4001 compared to 1n4004 :P

I don't get it why you said p channel and N channel in wrong way , Pchannel mosfet arrow is outside , N channel arrow is going inside , it is opposite transistor symbols, for inverter Pchannel sitting in upper position , N channel sitting in lower position

@Thesignalpath

4 жыл бұрын

The symbols are correct in the video. You have the PMOS and NMOS symbols backwards. The presentation in the video is correct.

first