TIDUEU6B September 2020 – December 2021 OPA810
In this calibration, a known resistance of 500 Ω is used as ZX. VO is given by,
This calibration is used to calculate the exact value of RF, both in the 100 Ω and 5 kΩ settings. It should be noted that the value of known resistance (RCAL) is selected to be 500 Ω in order to get the best possible calibration accuracies in both 100 Ω and 5 kΩ RG = RF settings. User can use other values for RCAL. The accuracy of RCAL will, however, directly affect the calibration accuracy.