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Altera_Forum's avatar
Altera_Forum
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8 years ago

Driving Ladder DAC

Hi,

Im trying to drive a resistor ladder DAC from my DE-1 SOC board, despite of my DAC being very accurate im getting somewhat shotty results.

The setup is relatively simple driving the resistors directly from the board. Right now im using plain old 3.3v ttl to drive it.

I was wondering what output standard is best used, and if I can drive Z to it without any troubles?

Kind Regards,

Camper.

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  • Altera_Forum's avatar
    Altera_Forum
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    8 years ago

    Awesome! Ill post some images when I get back at it :)

  • Altera_Forum's avatar
    Altera_Forum
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    8 years ago

    Driving 'Z' shouldn't be an issue.

    As for the I/O standard - that depends on your design. 3.3V (or 3.0V, 2.5 etc.) TTL or CMOS sounds fine to me and would be what I'd assume to use.

    Cheers,

    Alex