Hi,

What is the frequency you are interested?

Could you provide more details like expected max/min impedance, Rfb and Rcal, please?

Regards,

Miguel

Hi Miguel,

Thank you for your email.

The interested frequency is between 60 and 100 kHz.  The Rfb and Rcal are 2950 ohms.  The expected impedance is between 2000 and 10000 ohms.

I thank you in advance.

Best regards,

Niki

Hi Niki,

Do you know the expected theoretical impedance plot?

Did you measure the impedance with a different equipment?

Regards,

Miguel

I've tried the AD5933EBZ on a number of computers, and all have failed for lack of a USB driver. Running in compatibility mode never seems to help. I assume this is because the board has very limited OS support and even more limited driver support. I'm trying to evaluate if this device can be used to optimize the matching network for ultrasonic sensors. Can you give a list of supported OSes and/or drivers?

Hi,

The EVAL-AD5933EBZ GUI operates in W XP and W7.

We are working to support W8/10 in the future but currently the drivers do not support this OS.

Regards,

Miguel

Thanks for the quick and accurate reply. AD should include that important point in their documentation. I had tried to get the development board running under Windows XP64, Windows 8.1 and Windows 10 with no luck, and none of the compatibility modes worked either. But I installed Windows 7, and installing the software under this OS wasn't a problem.

Hi,

This info is included in the EVB description, but based on your feedback not visible enough.

I'll shorted.

Regards,

Miguel

Hi,

I just check in a new laptop with W10 32bits version and everything seems correct...

Could you confirm the version installed?

Note- I installed rev.B

http://www.analog.com/media/en/evaluation-boards-kits/evaluation-software/AD5933_revB.zip 

Regards,

Miguel

Thanks Miguel.

I've been using 64-bit Windows OS variants since I installed Windows XP64 in 2005, and my laptop is now running the 64-bit variants of Windows 10 (which unfortunately doesn't support a lot of my engineering software, including older versions of MATLAB). But even though I wasted some time with incompatible drivers, I discovered that installing Windows 7 Ultimate 64-bit is painless and free, and this OS supports everything that I have and is still supported by Microsoft.

The note that you referenced is pretty well hidden. It seems to be included only on the overview page, and only if you click on the 'show more' tab under product details. I didn't bother with this, because I knew I was going to be reading the manuals, and I didn't see this referenced in UG-364, where it probably belongs, or at least near the software downloads if it is too difficult to put out a new rev for a users manual. It would be better if the software installation process checked for a compatible OS, but since it doesn't, there should be a disclaimer when you download the support software that identifies supported system configurations.

I tried to install version 1.4 on Windows 10 4-bit with no luck. I'll try to install the rev B version that you installed on your Windows 10 32-bit version on my Windows 10 64-bit version. If that works, it would be an easy workaround for many people any the driver development team would have a good starting point for upgrading the rev 1.4 driver.

Regards,

Alan

Hi Alan,

Let me know if you success running the software, please

Regards,

Miguel