AD2S44-TM12B

Dear support team,

We have bought two AD2S44-TM12B chips in order to measure the angle of our device. we connected two sychros reference terminals of the chip with 36 VAC, 400Hz and the signal terminals with three phase about 56 VAC. The chip got a little bit warm and give us errors. We checked the datasheet and recognized that the standard synchros reference terminal of the chip is 115 VAC 400Hz and the signal terminal around 90 V rmc. We don't know how to solve this problem. If you can, please let's know.
Thanks for your help
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