Hello Vincent, Are you using the space grade product in the ceramic package or the commercial product in the plastic package? Are using the part in CDS or sample and hold mode? How is the OS+ pin connected. Remember, if in S/H mode, OS- must never be taken higher than OS+. If in CCD mode, OS+ should be connected to ground through a 0.1 uF cap. One thing I would suggest trying first is run the part with no signals on the input and adjust the fine and coarse DAC settings to see if you get an output and can move the output reading up or down by changing the DAC settings. You should then be able to multiply the DAC setting using the PGA.
↧