• AD7091 VSWR Return Loss Measurement Software 2.0 - Error 7

    Hello I am getting the following error when trying to change the power and frequency using this software. 

    Error 7 occurred at GPIB Write in SMA100_Power_Freq_Control.vi->AD7091_Main 2_0.vi

    LabVIEW: File not found. The file might be in a different…

  • Problems with AD7091

    Good day! I have several questions about AD7091.

    1) How to make a software reset correctly? We are thinking that documentation is written not so accurate in some points.

    2) What exactly will be with AD7091 if we won’t do software reset?

    3) Additionally…

  • AD7091 - Software Reset

    I am trying to use the AD7091 with a slow clock (10s of kHz). As far as I can tell from the datasheet, this means that I will enter power-down mode after each conversion since I cannot raise CONVSTn before 650 ns. The datasheet indicates that a software…

  • AD7091-R8







  • AD7091: FAQs

    After powering up the device why does the conversion result change after
    approximately 60 samples have completed?


    After power-up ensure that the software reset as outlined in the data sheet is
    completed. A software reset initializes the AD7091…

  • AD7091 SPI mode


    I would like to read data from AD7091 using ARDUINO MEGA 2560.

    As I am new to SPI ADC & Arduino,

    My doubts : 1) Which mode SPI to be used for AD7091.

    2) is there a sample code in C or VHDL for AD7091 ?

    Any help shall help me to make progress…

  • ad7091 software reset

    AD7091 needs a software reset sequence. But normal SPI controller can't  pull CS high between the second and eighth SCLK cycles to  short cycle the read operation. Can we use a normal 8 bits read to do this??

  • AD7091 - connection to /CS pin


    With respect to the /CS pin on the AD7091, is this basically an output enable (e.g. can I always leave it on if I want to)?”

    Can this pin be tied to ground indefinitely?

    Any input or feedback is welcomed and appreciated!



  • AD7091 max analog input range ?


    I plan to use AD7091R-8  with VDD and Vdrive to 3.3V and use embedded 2V5 voltage reference.

    some of the circuits i want to measure use drivers with low impedance and powered with 5V. Even if I can adjust operating scale of these circuits to 2…