I am looking into using the AD8250,AD8251 or AD8253 devices in a design and I have a few questions.
The AD8250/1 will be used to measure a voltage from 0-28V. I plan to supply the device with -1.8V/+32V supplies such that the output can be referenced to ground.
Will these devices work with such a supply range? I noticed in the spice model that the /WR input needs to be below -3V for the flip flops. I think this was causing convergence issues with the model. I wonder if this will be a limitation in the real circuit as well?
Are these 3 devices similar in this respect?