Is it good using INA213 to amplify +/- 33mV to range 0 -> 3.3V?
A 50V/V gain of ±33mV would give you ±1.65V on the output with no reference voltage. If you add 1.65V then that would be 0 to 3.3V. Since the output operates to within 3.1V (depends on the load) you the range would be 0.029V with a 3.3V supply. So if you need the range to be the full 33mV then use a 5V supply.