JAJSIU8B June 2015 – April 2020 ADS131E08S
The OFFSETCAL command is used to cancel the offset of each channel. The OFFSETCAL command is recommended to be issued every time there is a change in PGA gain settings.
When the OFFSETCAL command is issued, the device configures itself to the lowest data rate (DR = 110, 1 kSPS) and performs the following steps for each channel:
Total calibration time = (19 tDR × 8) + 1 ms = 153 ms.