Blowing out the DAC?

Official Hardware Mega Due
1

DuaneB
Dubai, UAE
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Re: How to you write to the second DAC?
« Reply #3 on: February 16, 2013, 05:21:04 PM »
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Be careful with your second DAC Output, A lot of us are blowing out the DAC.

As most DACs will be connecting to amplifiers it would make sense to modify a future version of the board to include a series current limiting resistor to protect these two high value pins - high value as in there are only two of them andf or some, they are the main reason for buying a Due.

Duane B

rcarduino.blogspot.com

So then what kind of value resistor will protect the DAC ? <1kohm?

2

Not sure why you have started you post with a random selection of my profile and a response from another thread.

The most relevant topic to your question is this one -

http://arduino.cc/forum/index.php/topic,139733.15.html

Have a look at the response towards then end of the post written by 'stimmer' - read it carefully because its based on another chip due to the limited information available on the actual chip used in the Due.

Duane B

rcarduino.blogspot.com