AnsweredAssumed Answered

AD5933 ezb measurement setup problem.

Question asked by anbo on May 11, 2015
Latest reply on Oct 26, 2015 by anbo

Hi all,

I am currently dealing with a eval-ad5933ebz board on windows xp system. Now my computer can recognize the board and the software is running. and all six LKs are set the same as the datasheet shows.

My questions are:

1.there are T3, T2, C3, C2, C1, Z on the upper right corner, can i just  connect my resistor to Z and ignore the rest?

2. how should i ground the device or i don't need to do so.

3. during calibration, i connect a 30 ohm resistor to Z and follow the guide, the result seems all right. then i replace it with  other resistors and click sweep but the value given by the software is still 30. i tried several times and the result is always the same with calibration resistor. what is going on?

4 i notice there are two empty pins marked as R6 and RFB what are they used for and do i supposed to put something on them?

I am really grateful to all those who offers help!