Hi Reshmi,
We do not currently have an ADC128D818CIMTX Linux driver. But you can go to www.lm-sensors.org to see all sensor IC Linux drivers. I placed a request for an ADC128D818 driver for you using their mailing list. This device has a very similar register set tot he LM96080. The LM96080 has more functions than the ADC128D818 and the ADC128D818 has more ADC resolution than the LM96080.
I hope this helps.
Take care,