Some problems about instrumental amplifierLTC6373

Hi, everyone:

LTC6373 is a fullly differentially input and output instrumental amplifier. I want to use it to remove the common mode noise of the voltage supply. 

For test, I give a sin wave voltage between Vin+ and Vin-(Vin- is connected to ground), and I just want a single-end output (such as Vout+,) so I let the Vout- be floating.

However, the LTC6373 does not work (or work for only few seconds) and breakdown!

How should I do or where the problems? 

(In fact, I want a instrumental amplifier with differentially input and a single-end output to remove the common mode noise of the voltage supply.  The reason why I choose the LTC6373: 1. Low noise; 2. gain control easily and we can get gain<1.)  

Wish to have a reply, thanx so much!