[sdiy] Multiplying DACs

[Matthew Smith]

Quoth Olivier Gillet at 28/01/11 21:51...
...
> Also, check your datasheet, I doubt the Vref can swing to negative
> voltages (on the MCP492x it can't). I think there are better VCA and
> ring-modulator than the one-quadrant multiplier you can get out of
> messing with Vref.

Thanks, understood. Just wanted to make sure there was nothing cool I 
could do with that external Vref - thought it sounded too simple!

Probably won't use these devices unless I find a parallel load 12-bit x 
4k word EEPROM ;-)

Cheers

M

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Matthew Smith
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