[simpits-tech] 0..5VDC DAC output...

Gene Buckle geneb at deltasoft.com
Fri Aug 13 22:03:15 PDT 2010


On Fri, 13 Aug 2010, David C. Allen wrote:

> At 02:26 PM 8/13/2010 -0700, you wrote:
>> On Fri, 13 Aug 2010, David C. Allen wrote:
>>
>>> At 01:21 PM 8/13/2010 -0700, you wrote:
>>>> Ok, after doing a bit of research I found a part from Microchip (MCP4725)
>>>> that is an I2C device with a 12 bit resolution.  It's actually less
>>>> expensive than the 10 bit equivalent to this device.  It's a tiny 6 pin
>>>> surface mount part (SOT-23).
>>>
>>>
>>> Leo used MCP4922 in the 8 analog output Nitro card. The MCP4922
>>> device is a dual channel 12-bit DAC
>>>
>> Thanks David, I'll look into it.  AFAIK, the Arduino software stack can
>> handle SPI as well so this should be a totally trivial interface job.
>
> Trivial for Programming God's but what about us commoners (lowest
> class of people/sim builders)
>
When I next place a part order I'll get some of those in DIP form factor 
to play with.

g.

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