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Anonymous Poster

AD/AD conversion

09/07/2009 1:38 PM

I have an analog to digital (AD) converter. Question: can it run backwards; will it convert digital to analog? If not, how might it be modified to run backwards...or what would prevent?

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Guru
Engineering Fields - Electrical Engineering - New Member

Join Date: Sep 2006
Location: El Lago, Texas, USA
Posts: 2639
Good Answers: 65
#1

Re: AD/AD conversion

09/07/2009 2:40 PM

Short answer NO. Long answer - still NO. But, interestingly, D/A converters are often used to create A/D converters.

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Active Contributor

Join Date: Sep 2009
Posts: 18
#2

Re: AD/AD conversion

09/08/2009 3:24 AM

You cant do that actually, check the circuit diagrams for AD and DA converters they are completely different. Well you can always operate and re arrange the components.

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Anonymous Poster
#3

Re: AD/AD conversion

09/08/2009 6:11 PM

Thanks, All.

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Anonymous Poster
#4

Re: AD/AD conversion

09/24/2009 9:11 AM

an easy way to make a dac would be to use your micro to PWM and use a low pass filter. change your duty cycle to change the DC voltage out of your low pass.

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Guru
Hobbies - Musician - Tube Amps Only Please!

Join Date: Apr 2009
Location: Los Angeles, California USA
Posts: 553
Good Answers: 1
#5

Re: AD/AD conversion

10/24/2009 10:42 PM

No you need a D/A of the same bit size.

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