multiplexing more than one adc804 with 8051

i m working on my final year project. i have a problem of getting an adc808 (8 inputs) around here. i need help on how i could multiplex two or more adc804 (1 input) to get a data acquisition system with two or more inputs. tanx
chiemeleakoma@yahoo.co.uk

Hi, you could use their control lines, read and write, and control each of them with different port lines from the MC, so if you send a write to adc #1, you should wait for the adc to read the value from it, but only that adc will send you the value, the others should be in 3rd state mode.