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  1. DAC8800
    Production
    Product
    Multichannel Voltage Output D/A Converters
    Octal 8-Bit D/A Converter
    DAC8800

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  2. DAC8420
    Production
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    Multichannel Voltage Output D/A Converters
    Quad 12-Bit Serial Voltage Output DAC
    DAC8420

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  3. DAC8408
    Not Recommended for New Designs
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    Multiplying Current Output D/A Converters
    Quad 8-Bit Multiplying CMOS D/A Converter with Memory
    DAC8408

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Results on EngineerZone

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    1. dac8800FPZ glitch

      Forum Thread
      Answered
      Precision DACs
      26 June, 2011
      Hello, I am using the old DAC8800 8 Channel DAC on a project, its pretty basic where I pass an 8 bit value to channel 1 of the DAC8800 The problem I have discovered is the ladder inside the chip appears to be incorrectly built. Ie. V1RH, V2RH, VDD set …
      Voltage Output D/A ConvertersMultichannel Voltage Output D/A Convertersdac8800

    2. RE: dac8800FPZ glitch

      Forum Reply
      Precision DACs
      02 August, 2018
      This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.Thank you,EZ Admin

    3. RE: dac8800FPZ glitch

      Forum Reply
      Precision DACs
      05 July, 2011
      Hi Darren, All these parts are production tested to the highest standard before leaving the factory - however it's possible the chip is damaged through some other method. -Liam

    4. RE: dac8800FPZ glitch

      Forum Reply
      Precision DACs
      04 July, 2011
      Hi Liam, I am currently on leave until the end of the month, however prior to heading off on holidays I pulled the prototype unit (that was in storage after moving) and it worked perfectly, this has an older IC from a different batch! Without swapping out the DAC8800 from …

    5. RE: dac8800FPZ glitch

      Forum Reply
      Precision DACs
      29 June, 2011
      Hi Darren Have you scoped all SPI writes to the part to makes sure that the data you are writing is actually seen by the part ? I assume you have checked all grounds / supplies etc, You could try the specified single supply setup on page 2 of datasheet: Vdd=12V …

    6. RE: dac8800FPZ glitch

      Forum Reply
      Precision DACs
      29 June, 2011
      Hi Liam, Yes it is a single supply system with the parameters you outlined Tim raised a good point regarding the Ref voltage but unfortunatly it appears to be unrelated to this issue. ie. The problem is still evident, any clues? thanks Darren

    7. RE: dac8800FPZ glitch

      Forum Reply
      Precision DACs
      28 June, 2011
      Hi Daliseau, I had hoped Tims headroom suggestion would have solved it. So you have a single supply system: Vdd=15V Vrefh=10V Vrefl=0V Vss=0V Has this issue been resolved ?

    8. RE: dac8800FPZ glitch

      Forum Reply
      Precision DACs
      28 June, 2011
      Hi- I moved this thread to the Precision DACs community. Please continue the discussion here. Thanks, AndyR EngineerZone Community Manager

    9. RE: dac8800FPZ glitch

      Forum Reply
      Precision DACs
      28 June, 2011
      Hi Tim, I changed the supply regulator to 15v and adjusted the reference to 10v the problem actually appears to have deteriorated (see below) VDD = 15v Vrefh = 0v (both) Vrefl = 0v (both) VSS = 0v Data 255 = 11.24v 254 = 11.14v 253 = 10.25v 252 = 11.02v 251 = 9.76v …

    10. RE: dac8800FPZ glitch

      Forum Reply
      Precision DACs
      27 June, 2011
      A closer look at the datasheet has (most likely) revealed the issue. The REF inputs (high side) have to be at least 4v from the positive rail. Thus, with a 12 volt supply, you're limited to 8v input on the reference. You've most likely got the output stage …