Originally Posted By: julian265

According to the spec sheet, the 1301/2 (like the 1321) output can be between 0.2 and 4.7V - which means you can't get the A/D converter to read less than 160 or more than 3850, even when you have plenty of magnetic flux. This just needs to be calibrated out in the operating system, unless you want to use a signal amplifier to get a true 0 to 5 V output.

Another possible approach would be to replace the positive and negative rail references for the ADC with values that allow to scan the whole range. The feasibility of this will depend on the ADC used, though. I believe it might be possible, but perhaps not for everyone. I tend to agree with Gene, if my joystick is fully swung in one direction it means I am not looking for fine input.