The AD9213 is a Complex ADC or Real ADC. Since by default it uses single converter (M = 1) and 16 lanes.
Thanks in Advance
Thank you for your interest in AD9213. In default mode (full bandwidth, M = 1), the AD9213 outputs are real.
The AD9213 has a DDC which can output complex values. When using the DDC in complex mode the outputs are complex. M = 2 (virtual converters).