On the section 3.2.1 page 69 of the user's guide the algorithm of Gain DAC lookup table calculation is used but it uses the Gain DAC Slopes, in an EEPROM it has the positive numbers and I want to know how the PGA calculates Gain DAC Slopes from memory values of EEPROM? For example the value of 64999 in the lookup table was 64999 at first or it was -537 and the twos compliment of the value was calculated and 64999 was the result?
In general, how does the PGA309 figures out from lookup table the actual sign of Gain DAC Slope and Zero DAC Slope from GMi and ZMi? How does it know were they positive or negative and was used twos compliment of the negative value or not?
I have the same question for temperature value also. How does it know the temperature value was negative or positive?