• AD5292 SDO

    I'm using an AD5292 digital potentiometer to change some voltage and an LTC2400 on the same SPI interface. However, my SDO is stuck to ground as a result of the AD5292 and the LTC2400 is not able to pull it high. 

  • AD5292: FAQ

    FAQ

  • AD5292: SPI Mode issues

    Q 

    The problem is: The Pot does NOT work, when the SCK line is held high  during
    idle. It needs to be held LOW! The datasheet (fig. 3 and 4)  suggest, that it
    can be either high or low, which is false!
    The SCK line needs to be LOW IDLE. It CANNOT be…

  • AD5292 Loss of Function due to Undervoltage

    I assume that if the supply voltages are taken down (VSS, VDD, VLOGIC), at some point the analog switches will become open and the terminals A, B and W will be open circuit.

    Unfortunately, the datasheet does not give a value for that, like a brownout…

  • RE: Simulation model for RDAC DigiPots (AD5292 or AD5293)

    Hi,

    I also was hoping to find more information on the segmented RDAC architecture.

    Best,

    George

  • AD5292 Max number of CI connected on Daisy-Chain Mode

    Hi, I'm working on a project with CI AD5292 and I wonder to know

    • If it is possible to connect 4 Chips on Daisy Chain, because I only found two on Datasheets and Aplication Notes. I would like to save port on my project.
    • And if I can use RDY port…

  • AD5292 Power up sequence frying my project?

    Hello engineers!

    I'm having trouble with my prototype and try to investigate every possible problem.

    I have an Audio Clipping circuit in my analog audioprocessor design. I am using the AD5292 100k digipot for this purpose. In the image below you see…

  • AD5292 Daisy Chain not responding to commands.

    I have 3 SPI buses with AD5292 DPOTS on each of them and only one those buses is daisy chained with 6 AD5292 DPots (TX only). The 2 the other AD5292 devices on the SPI buses can be controlled with no issues. The daisy chain bus doesn't respond to commands…

  • RE: AD5292 Power-Up - Do The Terminals Start Open Circuit And When Do They Get Connected?

    I have a follow-up question regarding this issue:

    If the supply voltages are taken down (VSS, VDD, VLOGIC), at some point the analog switches will become open and the terminals A, B and W will be open circuit.

    Unfortunately, the datasheet does not give…

  • Ad5292

    我使用stm32模拟SPI操作，能写入数据可以调整电阻，参考Table 12. Write and Read to RDAC and 20-TP Memory写入0x1803、0x0500、0x0C00。发现使用十分钟后自动恢复到一半阻值

    写入时序按照手册Figure 3. Write Timing Diagram, CPOL = 0, CPHA = 1 ，模拟时序如下：

    /**************************************************************…