Hello, i am looking for the data sheet for pn: AD7714ANZ-3. I have tried searching online and there is no data sheet with single channel pin
Look at pages 3 and 7 of the rev C AD7714 data sheet. It's there.
However, I would not do a new design with the AD7714; it's very ooooold.
Look at the AD7770 or AD7779.
If you need PDIP, then use multiple AD7822 or AD7811.