8.2.1.2.2 Programming and EEPROM Settings
The following sequence must be followed to program and configure the PGA300 for current output mode:
- Send the OWI activation-pulse sequence.
- Set the MODE_SEL[1:0] bits in the MODE_CTRL register to 0b11 to switch into configuration mode.
- Program 4_20MA_EN = 0b1 and DAC_GAIN[2:0] = 0b000 in the OP_STAGE_CTRL register to select current output mode.
- Program the DAC_RATIOMETRIC bit in the DAC_CONFIG register to 0b0 to select absolute output mode.
- Set the MODE_SEL[1:0] bits in the MODE_CTRL register to 0b00 to switch back to execution mode.
By default the PGA300 is configured to operate in current output mode.