BioZ Reading (ohm) = (VREF×[20 bit ADC code]) / (BioZ Drive current × 2^19 × BioZ Gain Setting)
Where VREF = 1V. BioZ Drive Current is programmable to 8uA, 16uA, 32uA, 48uA, 64uA, 80uA, or 96uA. BioZ Gain Setting is programmable to 10, 20, 40, or 80 V/V .
The 20-bit ADC code is in two’s complement format so the right polarity needs to be considered when converting to decimal.