How Do ADCs Work? - The Learning Circuit

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  • Опубліковано 4 лют 2025

КОМЕНТАРІ • 85

  • @retromobs6018
    @retromobs6018 3 роки тому +20

    The I.T Crowd shirt is just beyond awesome lol

  • @dhaniyawaad
    @dhaniyawaad 2 роки тому +8

    Thank you for providing the working principles of multiple ADC types in such a lucid and vivid presentation! . these tutorials help me out a lot.

  • @ChezGuevara1
    @ChezGuevara1 11 місяців тому +1

    Bottom line is there is a lot of information to relate. Perhaps divide into very small sections each covered in simple terms and at a reasonable speed. Obviously there are tons of ways nowadays to digitize an analog signal. Some are more preferred than others but the key here is the listener only needs to know what is analog, what is it for, an example. Then what is digital, why do I want to digitize a signal and why use one method over the others. Keeping focus on using the simplest language. Thanks a million

  • @fefafafe5059
    @fefafafe5059 3 роки тому +3

    You're a good & big teacher.
    You do & explain always very well.
    Nice to you.
    Many thanks Teacher & Master.
    FR from Switzerland

  • @MrCardeso
    @MrCardeso 3 роки тому +2

    Very interesting. Thanks, Karen! I will have to re-watch to get all the details.

  • @juanmontoya1309
    @juanmontoya1309 3 роки тому +1

    I love your smile, explicas de manera sencilla y detallada, gracias, abrazo desde México

  • @electricgirlwithatwirl
    @electricgirlwithatwirl Рік тому +3

    For Flash ADC circuit, there should be 2^N resistors, you show the right voltage drop from 4.0V to 3.5V but without any resistor in between.

    • @streakurt
      @streakurt Рік тому

      Voavvv very very informative a girl. I would follow you on instagram and learn something from you. Can you let me know your ID ? :))

  • @artursmihelsons415
    @artursmihelsons415 3 роки тому +5

    First ADC, what I assembled, back in days, was created with opamp, who converted audio input in PWM signal.. Then firmware measured time between each period.
    Second ADC I assembled from two CD4049 IC's. First one IC did all job, using resistor feedback network to next element, second one was as buffer for digital output.
    Still have next version - AD7581 IC's analog manufactured 1992 in Riga. That ADC working in my DIY stereo system for audio capture from multiple channels for level displaying.. Some time ago, that system has an output for disco lights, using same base data. Removed when previous MCU run out of space. Updated MCU, updated system buses and I didn't put Disco lights output back..
    I don't use Arduino, I'm using Atmel MCU's directly, by now, more than 20 years.. 😂

    • @electrical58
      @electrical58 8 місяців тому

      Wow! What do you do ? I'm a vlsi engineer doing analog layouts of MCUs. Seriously with so low knowledge on diys

  • @RonaldRosete-ei1vn
    @RonaldRosete-ei1vn 8 місяців тому +2

    10:12 why 3.5V in uppermost when the vref is 4V? They are just in the same node so they must have the same voltage.

  • @abu-zaiter
    @abu-zaiter Рік тому +1

    great explanation thank you 🙏

  • @omerfarukkara4138
    @omerfarukkara4138 7 місяців тому

    Amazing quality, thanks for your work.

  • @maxk4324
    @maxk4324 Рік тому

    Ooooooh, lol of course it just eventually converges on being variations of hardware implemented PID control loops with the voltage reading beign the output. Should've thought of that. Thanks for the awesome informative video!

  • @udageethdias
    @udageethdias Рік тому +1

    Great explanation!!!

  • @network_king
    @network_king 3 місяці тому

    I suspect they are all over the place. I was just thinking of a foot pedal on a TIG welder that controls the amperage. The higher end units you can even set a max on so 0-120 amps would have better control than a 0-300 amp range would. I'm not sure how they determine the output though if they are increasing the duty cycle or the voltage being used. The nice ones also have a high frequency start with a high voltage that helps start an ionization path for the current. I was thinking this and was like be cool they had a way to instead of a pedal or maybe combined with a temperature feedback then it could adjust automatically.

  • @ajinkyamahajan5736
    @ajinkyamahajan5736 3 роки тому +1

    Wonderfully explained 😊
    I wish you cover a Video dedicated to Delta Sigma ACD in Future
    Thanks.

  • @castlecodersltd
    @castlecodersltd 3 роки тому +1

    Another great, clearly explained video. Thank you

  • @innocentrwakigarama3848
    @innocentrwakigarama3848 3 роки тому

    very good explainations

  • @alohahoward1
    @alohahoward1 3 роки тому

    I wish I could solder like you!

  • @bizzydizzy
    @bizzydizzy 3 роки тому

    Very clear explanation- thanks.

  • @extractiongames3091
    @extractiongames3091 6 місяців тому

    thank u sister really useful may Allah bless u

  • @sociocyberneering
    @sociocyberneering 2 роки тому

    Would you say that an airplane ACE (actuator control electronics) works much this way. When a pilot moves a control the analog signal goes to an ACE, then the digital signal goes to a PFC (primary flight control computer) giving an appropriate command in digital back to the ACE. The ACE converts it back to analog to move a control surface.
    FYI: This is the fly-by-wire flight control system of a B777.

  • @ashrafatteya
    @ashrafatteya 3 роки тому

    clearly explained video

  • @goodsound4756
    @goodsound4756 2 роки тому

    So the bits are used for the value and the sample rate for accuracy over time; but how are the frequencies converted? Is there one sample for 20 Hz and then another sample for 21 Hz and so on, to re-create the complexity of the music signal?

  • @Vaiespionaroc.....
    @Vaiespionaroc..... Рік тому

    A tua t-shirt é altamente ❤

  • @q12x
    @q12x 3 роки тому

    Very good subject !

  • @VerticalWit
    @VerticalWit 3 роки тому

    What a great video. Thank you

  • @krishnendusengupta777
    @krishnendusengupta777 2 роки тому

    Please describe autopilot analog input to digital in flight management computer then into analog into actuator

  • @villagerse
    @villagerse 8 місяців тому

    Can u suggest a substitute for ak5358 ic

  • @Fr0zen14
    @Fr0zen14 2 роки тому

    Thanx 😊

  • @tikottv1291
    @tikottv1291 2 роки тому

    what is the output if vanlog and vref is equal?

  • @HousseinDroubi-o9i
    @HousseinDroubi-o9i 3 місяці тому

    Hello, welcome to you.

  • @MmmBopsPops
    @MmmBopsPops 2 роки тому

    6:15 - INTEGTRATOR

  • @mbierranger1379
    @mbierranger1379 3 роки тому

    another very cool video. Thanks :)

  • @محسنسلطانی-خ2ت
    @محسنسلطانی-خ2ت 2 роки тому

    Very good

  • @joeybaronstudio
    @joeybaronstudio Рік тому

    What would be the best for audio?

    • @element14presents
      @element14presents  Рік тому

      Consider asking fellow engineers and makers on the e14 community: bit.ly/3FfHazj

  • @utkuserin9750
    @utkuserin9750 3 роки тому +4

    I wonder about how DAC's works. The next video could be about it.

    • @vylbird8014
      @vylbird8014 3 роки тому +1

      Surprisingly easily. Two common ways.
      1. Generate a PWM signal using an all-digital counter circuit, then filter this using a simple RC filter circuit (often external) and buffer. This is how arduino and Raspberry Pi audio work.
      2. A line of resistors, connected to each bit and values carefully chosen so that each contributes exactly the right amount to the output voltage. More expensive to fabricate, but much higher bandwidth.

    • @utkuserin9750
      @utkuserin9750 3 роки тому

      @@vylbird8014 I know that there isnt a DAC in arduino

    • @vylbird8014
      @vylbird8014 3 роки тому

      @@utkuserin9750 True, the arduino has PWM generators - not quite a DAC, but they can be trivially adapted to function as one.

    • @maker_karen1785
      @maker_karen1785 3 роки тому

      Well I’ll tell ya, you might just be in luck. 😉

  • @bagusdwi6215
    @bagusdwi6215 Рік тому

    THANKYOU

  • @dogma2030
    @dogma2030 3 роки тому +1

    Holaaaaa, muchas gracias.

  • @j_m_b_1914
    @j_m_b_1914 3 роки тому

    I love your shirts! Retro!

  • @BrainSlugs83
    @BrainSlugs83 3 роки тому

    Aside from the ADCs built-in to most modern microcontrollers are there any ubiquitous DIP ADCs to experiment with?
    Like something as famous /recognizable as a 555 timer or the 7400 logic series?

    • @juanalvarez6179
      @juanalvarez6179 3 роки тому

      MCP4725 or MCP3008

    • @vylbird8014
      @vylbird8014 3 роки тому +2

      A few old ADCs, but most modern ADC chips would use an i2c interface. The ADCs built into most microcontrollers are actually pretty rubbish, so it's very common to use an external one on an i2c connection. I built a project using an ADS1115 once - the sample rate is poor, but it can do differential measurements, the resolution is far superior to an atmega, and it has a built-in programmable amplifier that lets you do very precise measurements of tiny voltage differences.
      I used it to make a curve tracer for measuring the properties of diodes and transistors, as a way to detect the many fake parts you get buying on eBay.

    • @artursmihelsons415
      @artursmihelsons415 3 роки тому

      ADC0804, ADC0808 were very popular IC's, back in day's.
      ADC can be assembled from few hex inverter IC's too. I did it long time ago for one project. 2 cheap IC's, bunch of resistors and 5 bit resolution at the output.. Only, how I remember, I didn't use 74 series but CMOS IC's - CD4049..

  • @ScottJohnson-vi2ts
    @ScottJohnson-vi2ts 2 роки тому

    Hey there! I came across this video in search for more understanding of bit depth. I'm a learning audio engineer and my teacher was telling me that in A/D conversion, more bit depth increases the dynamic range due to less equalization noise being added. However, he said that more bit depth doesn't equal more definition or more available bits to be used in a specific deciBel. It confused me a lot and I'm in need for an answer. Does a bigger bit depth increase definition/ provide more accurate readings of an analog signal in a specific sample?

  • @DEATHSSHAZE
    @DEATHSSHAZE 4 місяці тому

    Nice!

  • @schilll
    @schilll 3 роки тому +3

    ADC's work with a good support on botlane, just need to get enough CS and you can carry!

  • @ismailansi8482
    @ismailansi8482 3 роки тому +3

    at 3:21 it should be Vref=3.5 volt otherwise you missed a resistance
    ua-cam.com/video/g4BvbAKNQ90/v-deo.html

  • @boogiewoogie2010
    @boogiewoogie2010 Рік тому

    The spelling of "Integrator" is wrong in the slide. Is that a digital error or analoge error ?

  • @GustoTheGamer
    @GustoTheGamer 3 роки тому +2

    What about a cd DAC ?

    • @vylbird8014
      @vylbird8014 3 роки тому +1

      Common enough that you can get single-chip solutions that do the whole process from reading the bitstream straight from the laser right to outputting audio ready to feed into an amplifier. Though they are not easily available, as they are usually a custom order for a specific manufacturer.

  • @SurvivalSquirrel
    @SurvivalSquirrel 8 місяців тому

    It would have been useful, to have gotten some more information about "step recovery". At least some rough values....

  • @soeaung1984
    @soeaung1984 2 роки тому

    inverter and charging circuits

  • @waverlyarbeau4962
    @waverlyarbeau4962 3 роки тому

    yes, more then one.

  • @shoukatali3238
    @shoukatali3238 3 роки тому

    Hi, dear you genius or The God gifted you are doing a whole world students are also professionals get so much information... If you need any help from my side analog and digital and quantum electronic for robots technology... I have 20 years experience but The God gifted.

  • @david-tracy
    @david-tracy 2 роки тому

    I have to come back to leave u a comment... u did REALLY well with this video
    thank you
    and God bless you friend :)
    xoxo (friend cheek kiss :P)

  • @halcyon__r3289
    @halcyon__r3289 6 місяців тому +1

    Bonne vidéo mais trop compliqué. A noter partiellement.

  • @geonidas6098
    @geonidas6098 3 роки тому +1

    LOVE WATCHING, PLUS KAREN IS A HOTTIE!!

  • @srisankaran24
    @srisankaran24 Рік тому

    2 raised to 23 is wrongly typed

  • @stefanfinesse7521
    @stefanfinesse7521 9 місяців тому

    4:47 the slower the signals match

  • @bornshamir7792
    @bornshamir7792 Рік тому

    #Converters

  • @GuardTower
    @GuardTower 3 роки тому +22

    They go to the bottom/dragon lane to focus on last hitting minions and getting as much gold as they can to power up and carry the match during end game.... oh wait... wrong hobby...

    • @schilll
      @schilll 3 роки тому +1

      Beat me to it! Lol

    • @maker_karen1785
      @maker_karen1785 3 роки тому

      I am upset that I don’t get this reference.

    • @schilll
      @schilll 3 роки тому +1

      @@maker_karen1785 be glad, its such a horrible game. Even people who enjoy the game hate it

    • @dawsonpate7385
      @dawsonpate7385 Рік тому

      @@schilll and yet can't get enough of it

  • @prakashs538
    @prakashs538 5 місяців тому

    Better I know about adc

  • @mustafaburton115
    @mustafaburton115 3 місяці тому

    Lets pretend that i understood
    Nice video,, thank you 🤔🤔

  • @abhayr1814
    @abhayr1814 5 місяців тому

    Teacher told to build a ADC to take analog from temp sensor and change it to digital and here I am confused...😅

  • @thepositivewaves5487
    @thepositivewaves5487 3 роки тому

    Love u mem

  • @AlbiinoBlacksheep
    @AlbiinoBlacksheep 3 роки тому +1

    2:53 "High one" sounds like arabic "haiwan" which means animal and is often used an an insult! :D

  • @davidhitchFPV
    @davidhitchFPV 2 місяці тому

    You lost me back at “welcome back”

  • @ChezGuevara1
    @ChezGuevara1 11 місяців тому

    Listening to you in the video only tells me you know your stuff however the art of teaching is how simple you make the information to the listener or reader. If you introduce a new term while explaining a topic you have just added a new topic. The more you add without fully explaining the new topic in simple terms the more confusing your lecture becomes