AGND, DGND, ISOLATION (STAR CONNECTION)

[@balamatcha4797]

Excellent explanation sir. Looking forward for more of your videoes

[@abdelazeemhassan3701]

Great discussion , thank you, please continue

[@analoglayoutdesign2342]

Thanks for the feedback

[@santanu-io]

Excellent explanation. Thank you.

[@pcbekri340]

Thank you soooooooooooooo much, very well explained.

[@offscreensingers7644]

Thanks for your clear explanation bro.❤❤

[@analoglayoutdesign2342]

Thanks

[@tanluu1944]

Great lecture. Thank you.

[@analoglayoutdesign2342]

You are welcome!

[@yogeshposnak7147]

Nice explained sir

[@ben-e-biketv4047]

Ever thought about EMI when using star ground connection???? A well designed pcb never requires any separation of analog ground and digital ground! Even with AD or DA converters

[@sunkarasaigoutham]

a nice explanation of Gnd from basics. But I didn't understand what you meant by earth grounding rod?

[@analoglayoutdesign2342]

earthing is connecting to mother earth itself...find out more about earthing techniques..you will get it

[@sunkarasaigoutham]

at 19:10, when agnd and dgnd are separate pads, there is still a possibility for current to flow from analog circuit to digital circuit if the substrate taps are not strong.

[@analoglayoutdesign2342]

true

[@anujabade7814]

Hello sir, your videos are too good .will explain the operation of opamp?

[@analoglayoutdesign2342]

yes surely...thanks

[@maheshb406]

Sir which book you are referring to?

[@tanluu1944]

Thank you.

[@analoglayoutdesign2342]

Thanks for the feedback

[@qwertykeyboard04]

16:50 It's said that connecting agnd and dgnd needs an inductor. I have TPS51222 ic, page 30 said it is required to short them with 0 ohm resistor, is the inductor from dgnd circuit same with this function?

[@jayateerthar5224]

Please check out, that could be ferrite bead to reduce high frequency noise n emi. Ferrite bead inductance is specified as ohms and not henries.

[@211SANDEEP211]

Thanks

[@akelectronix5107]

Agnd and dgnd seperate using ferrite beads? how to select the value?

[@analoglayoutdesign2342]

Depends on how much impedance you need between analog and digital gnds. Also what's the switching of your digital?

[@ayyappann6860]

When can we expect new videos sir

[@analoglayoutdesign2342]

I am working on it… within two weeks

[@sumitjaiswal1505]

By putting SUBP2 we can clean LVS, but does it physically signifies that two grounds are separated because the substrate is common for both??.??

[@analoglayoutdesign2342]

yes...its electrically shorted....its not isolated...if you want to isolate, then DNW

[@mohammedafzal534]

I noticed 1 layer in nmos named pwell.Do you have any idea about pwell layer. What's the purpose of it

[@analoglayoutdesign2342]

that could be a DNW transistor. please Check

[@mohammedafzal534]

@@analoglayoutdesign2342 I don't remember exactly but i remember that it would be a RF device

[@analoglayoutdesign2342]

yes..generally RF devices are DNW devices

[@sunkarasaigoutham]

what is the typical inductor valued used in power supply isolation at 16:50? is it external or internal to package? If it is huge, i don't think it is possible to accomodate inside the package. what is the reason that the same inductor is problematic for gnd? Both these statements seem contradictory.

[@analoglayoutdesign2342]

isolated powersupplies use transformers.... they can never get integrated....isolated powersupplies inside a chip or even package is not possible....

[@nofaclan2184]

Ok

[@nineeshmk8781]

Sir I have a simple doubt..... My circuit is having agnd and dgnd both and the power supply is 6-0-6ac..... How can I connect it directly to 12v dc...?

[@analoglayoutdesign2342]

I think from your 12V DC power supply, they have a smps that generates 6V DC. and for 6v ac... theyn might be inverting it as well. if you can share me circuit diagram high level or power supply pic, then i can discuss more...