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PGA970: Need help configuring the PGA970

Part Number: PGA970

Hi 

i have got a PGA970, and trying to interface with an LVDT.

I and able to communicate the PGA970 to GUI with the help of USB2ANY, and tried configuring the same.

I tried configuring the PGA970 for the LVDT primary frequency of 2.5Khz with the amplitude of 2.5V.

In the GUI the max Amplitude possible is only 0.375V.

can anyone guide me on how to set the amplitude? is there any formula available to calculate the same?

Also i need to read the LVDT position on SPI, is this possible? if yes kindly let me know the register which i need to read for the position.

Looking forward for your support.

Shivu