8.2.1.2.1.1 Programming the EEPROM for 4-mA to 20-mA Output
The EEPROM in the PGA305 is configured by default to operate in current mode using the OP_STG_CTRL register. If not, the user must follow this sequence to change it to current mode:
- Send an OWI activation pulse to stop the digital compensation from running.
- Set OP_STAGE_CTRL to 0x80 for current mode and DAC_CONFIG EEPROM to 0x00 or 0x01 for No_Gain.
- Let the digital compensation run again to read the new EEPROM values.