Regarding the DAC output range of ADuCM350.
By the device datasheet, it specifies that the output range of DAC is -0.6V ~ +0.6V as seen by sensor.
And by the user guide (UG-587), the DAC out range is 0.5V to ~1.7V based on VBIAS 1.1V (1.1V +/- 0.6V).
I think this range is because it is related to interal TIA's VBIAS(1.1V) of ADuCM350.
What I want to know is if it is possible to output the DAC range of ‘0V ~0.6V’ based on ground level (0V), not VBIAS 1.1V.
Simply, I want to use the DAC as independent DAC like standard DAC (not related to internal TIA).
The purpose is that I want to use the DAC as the bias source(0.2V~0.5V) of the discrete Op-Amp (positive terminal) for glucose meter application. At this time, the ADC part of ADuCM350 is used to measure the analog signals (output of Op-Amp) via AN_A, AN_B…etc.
And, if the DAC output range of 0~0.6V is possible, what is the configuration(setting) of P and N switch?