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8 bit DAC

Discussion in 'Electronic Design' started by jay, Oct 27, 2004.

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  1. jay

    jay Guest

    I'm looking to convert 8 bit parallel data to analog chip and/or circuit.
    The requirement is the DAC must be free running all the time (no timing for
    writes, clears, whatever), single 12V supply and the output must slew from 0
    to approximately 12V. I see not many DACs operate at 12V (like the AD7224
    which slews from 0 to 10V).

  2. Look up "R2R ladder". Perfect for that application.

  3. Rich Grise

    Rich Grise Guest

    Apparently, these guys' teacher doesn't cover much background material.

  4. Leon Heller

    Leon Heller Guest

    Why not use a 5V DAC followed by an amplifier?

  5. Jamie

    Jamie Guest

    if you already have a Parallel output then simply create a
    resistor ladder on the 8 bit outputs.
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