Multisim and Ultiboard

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D/A converter

Hello. I am currently doing a shape filter and need a 8bits Digital to Analog Converter. (DAC) . From the library, i only managed to find current output  DAC. I want to have a DAC converter with voltage output. Any recommendations? 

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Output the IDAC into an Op amp. See image below. You could also do this differentially for better performance.

 

IDAC.PNG

IDACdiff.PNG

Images from App Note: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=6&ved=0ahUKEwiYiuHKm9LLAhUB0mMKHV-TDm4...

 

I should mention, you can use other op amps, not just the ones shown. Also what version Mutisim are you using?

 

 

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Not sure what version Mutlisim you are using, but I found voltage DACS in the master lib under mixed. I also found models in my mouser lib. Not sure if my version is compatable, but I will post the schematic using a few symbols below. Note: The bottom symbol U3 can be used with simulation.

 

 

 

DACS.PNG

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Hi. I am using multisim version 11.0. There is another question about the IDAC from the library. What is the code table used inside it? eg. 1111111 will get what as output. I am going to use the DAC converter as bipolar operation. 

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