• AD5689 power management?

    Hello,

    I have a question about the power management of AD5689.

    Is it possible to power VDD and VLOGIC independent of each other?

    That means I would like to shut down VLOGIC if the device is not in use.

    I know that there are Power Down Modes but i…

  • 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…

  • 24bit SPI AD5689

    DACI have a spicontroller that I  am selecting in 12bit mode but writing to a 24 bit device  AD5689RBRUZ do I have to use Slave Select or will a independant device select be sufficient. I am getting a output but can not get accurate control.  I am asserting…

  • AD5689 Maximum Voltage Reference Load

    It is possible to uses an internal voltage reference as exhobited in AD5689R also for another ICs within one project.

    How much current it can delivery. I just want two uses two DACs, one with build in Ref Voltage (AD5689R) and one without internal Vref…

  • 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.

  • AD5689: High low frequency noise (0.1 -10Hz)

    Hello,

    Im using an AD5689 16 bit DAC to create DC bias current source, as indicated in the following picture and I'm detecting a high level of low frequency noise.

    I represented L1 as an inductor for simplicity but  it is a filter with an high…

  • 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: EVAL-AD5689RSDZ user guide and evaluation software

    AD5686和AD5689的评估板是一样的,软件支持的

  • 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…

  • 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…