Output Data Format @ AD9225 is the straight binary or offset binary ?
In the datasheet @ AD9225, 17 page,
"DIGITAL INPUTS AND OUTPUTS
"The AD9225 output data is presented in positive true straight binary for all input ranges."
This is a description about the "straight binary".
"A twos complement output data format can be created by inverting the MSB. "
I think that this is a description about the "offset binary".