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  1. #1
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    saeed_pk's Avatar
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    tablet mouse schematic

    We change the resistance in a potentiometer mechanically.
    I want to design a digital potentiometer(variable Resistor) whcose Resistance can be changed by just using different combination
    Let say i have 2 bits then 4 combination so it covers total value of that potentiometer
    Is there something like that exist if yes plz tell.

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  2. #2
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    ssm2160 schematic

    There are lots of these around.

    Google for "digital potentiometer"



  3. #3
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    potentiometer digital maxim simulate proteus

    hi

    checkout proteus vsm www.labcenter.co.uk
    and download vsmlibs archives

    there are a few made in it also some dlls to add in
    for maxim type's i add to this dll if people need a model
    just let me know

    try out devices like ad8403
    this one takes a 10bit data word and the upper two bits select the pot to address
    with the lower 8bit value
    i vsmlibs archive is some test designs with micros you can try out



  4. #4
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    digital potentiometer mouse

    I want circuit for volume dac



  5. #5
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    digital potentionmeter schematic

    ssm2160 or 2163 easy to use using micro p to address it

    or lots of them on a bus and in cascade


    take a look at an old pipedream i had {and actualy half built}
    then reused

    its an old design now made using proteus lite

    its not for simulation just a schematic of a wonderfull tablet mouse driven 4 channel 4 decks etc +other i/o dj mixer


    you can download the demo of proteus pro
    and use goto sheet to see all the sheets in the design


    the implimentation in electrical terms of there use is ok
    as is the ad8403 but no code was constructed atall

    however its easy tomake one in c picc or something
    a 40mhz chip will run it pic18f or something


    circuit below authors home pages
    http://www.pology.zp.ua/har/index.html



  6. #6
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    Digital Potentiometer

    hello
    I want circuit for volume with ad8403

    thanks



  7. #7
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    Re: Digital Potentiometer

    see analog devices website



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