In Differential mode, the offset is defined when the differential input voltage is zero.
Figure 1. Gain and Offset Errors in Differential Mode
where:
- Full-scale error EFS =(EFS+)-(EFS-), unit is LSB code
- Offset error EO is the offset error measured for VIN=0V
- Gain error EG=100 × EFS /4096, unit in %
The error values in the tables below include the sample-and-hold error as well as the PGA gain error.