• RE: AD5689 Maximum Voltage Reference Load

    Hi,

    Yes, you may use the internal reference voltage of AD5689R as an external reference voltage for AD5689.

    AD5689R can drive up to 10mA load and the  AD5689's reference current is only 90uA (using gain =1).
    hope that answers your question!

    Cheers…

  • Problems with AD5689

    Hi guys,

    I made a board with a little routing mistake. I routed /RESET to GND. I don't know if my workaround was successful because i get no voltage at the DACs output.

    Do I get back no data from the MISO by default?

    Can it be that the module…

  • RE: 24bit SPI AD5689

    Hi,

    Can you share your schematic?

    Can you also share SPI waveforms?

    Cheers,
    Ivan

  • RE: AD5689 power management?

    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,
  • Is the AD5689 gain pin a logic pin?

    Hello.

    Is the AD5689 gain select pin classed as a logic pin?

    The datasheet says to tie it to VLOGIC or GND, but can I drive it externally as long as I obey the thresholds as shown in Table 2?

    The relevant part from Table 2:

    Thanks for the help.

  • RE: AD568x true DAC architecture

    Hi Michael.

    I understand your position but as for me I prefer that structure would be described as it is in reality. Some differences between two discussed structures may be observed in noise performance, modulation bandwidth code related effects, stability…

  • AD5689输出电压需要一段时间后才稳定的问题?

    本人用AD5689RARUZ输出模拟量电压,电路参考芯片手册设计,程序已经调通可以正常控制输出电压,现在执行以下代码

      while(1)

      {

            AD5689_WriteUpdate_DACREG(DAC_A,1000); // output

            HAL_Delay(10); // delay 10ms

           

            AD5689_WriteUpdate_DACREG(DAC_A,50000); // output

            HAL_Delay(10); // delay 10ms

        }

    测试实际波形是这样…

  • RE: What is real noise performance of nanodac/nanodac+?

    Hi There,

    The AD5689 output spectral noise should be 100nV/rtHz, not 300nV/rtHz. This is an edit that we are currently working on as part of an update to the data sheet for that product.

    In the AD5689R, figure 12, the vertical scale on the plot should…

  • nanoDAC+ Family AD531x/AD568x/AD569x/AD567x FAQ

    Q1. What is new?

    A1. The nanoDAC+(TM) family offers improved analog performance in terms of INL and glitch energy specifications.. Some members of the family, those with a part number ending in 'R', for example AD5686R, include a  low drift…

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