Flash ADC (3-bit)

A brief explanation as to the working of a 3-bit flash analog to digital converter.
Correction:
05:01 Please note that I completely missed the 2.0V op-amp in this example. The 2.0V op-amp will put a HIGH on input 4 of the priority encoder and therefore the output will be 001(binary) or 4(decimal)

[@streakurt]

Could be better but to be honest, my english is not perfect that could be also the reason but i can say, i had been watching this ADC videos for maybe 3-4 days, i watched ten of videos, finally and final understand was with your video !! I m so happy finally i got the point :d Yes !!!

[@agstechnicalsupport]

Great video demonstrating the working principle of flash ADCs. Thank you for sharing !

[@electro.engineering]

Damn, that was a hella good explanation. Thank you very much.

[@chunpanhuen2681]

Clear examples and explaination. Thank you very much!

[@VarunKumar-gp1oq]

Thank you so much

[@vanchungle5504]

Great!
Perfect and Simple. Thanks.

[@HgoSbo]

Amazing explanation ❤

[@omara.7107]

Amazing explanation, thanks mate!

[@CollinBaillie]

I think the last example has an error. You compared 2,2v to 0,5v 1,0v 1,5v and then jumped to 2,5v.
So the real value is 4, not 3 as 2,2v is larger than 2,0v on line 4. So the output would be 100, but the concept of the video was made clearly all the same.

[@Jan_Spies]

You are quite right!
By not aligning the voltage reference values properly with the op-amps, I completely missed the 2.0V output and therefore did not show the 2.0V op-amp as being HIGH, as you pointed out... 🤦‍♂
The answer is indeed 4, and not 3.
Thanks for noticing and pointing it out.

[@starpink-s4p]

Thank you sir

[@maymdh]

Why the output become 1 0 1 from 2

[@codelord9031]

Nice an easily explained

[@forthehorde4260]

thankyou very much

[@ubaidilyas9826]

Perfect and Simple. Thanks.

[@SergioHernandez-nc9hi]

Wow great explanation! Just a bit confused in the last example wouldn't the binary ouput to represent 6 be (011) and not (110)?

[@Jan_Spies]

Hi Sergio,
Great question!
When representing numbers, you always write the most significant number (ie: the number with the biggest weight) on the left side. In the case of the binary representation of 6, the bit representing the 2^2 weight is written first with the bits representing the 2^1, and the 2^0 weights following.

[@CollinBaillie]

The output of 011, as shown in the video is for 3, because bit 3 was the highest value which exceeded the Vin voltage. Not sure where you got 6 from?

[@adarshk8822]

louder brother