The AD7960 is an 18-bit, 5 MSPS charge redistribution successive approximation (SAR), analog-to-digital converter (ADC). The SAR architecture allows unmatched...
Datasheet AD7960 on Analog.com
You can use the test pattern of the AD7960 if you set the EN[3:0] bits to 0100 as mentioned in table 8 of the datasheet. In this case, the test patterns output on LVDS and the ADC output is not available on the interface.