ADS1292R

Hello everyone

I am trying to connect Arduino with ADS1292R

Before proceeding with the main problem i would like to ask some basic question to make sure that the hardware setup is ok.

The Digital output from arduino is 5v signal, for clock, MISO MOSI CS and every other output, Should i use a level converter to lower the voltage, as with these signals my ADS1292r is getting warm. i dont know if its the voltage or something else, i have checked all my connections and they are fine.

Should i use a level converter to lower the voltage, as with these signals my ADS1292r is getting warm.

What does the data sheet for the ADS1292R say about allowable input voltages ?