The CONVST, CS, and SCLK pins are operating as recommended, but the SDO pin is not.
After power-up, the RVS pin remains low.
In the datasheet page 25; 7.4.1 RST State
"In RST state, all configuration registers are reset to their default values, the RVS pin remains low"
Is the SDO pin not operating because the RST state not exit?
・RVDD = +5.3V
・DVDD = +2.5V