sir,
i want to connect a ADC(0804) in free-running mode to microcontroller(89s52) and a seven-segment display to port 3 of microcontroller to view the output,plase provide me a circuit diagram.
please help,it's urgent

 

plase provide me a circuit diagram.
please help,it's urgent

Here is a circuit diagram:

 

http://cache.national.com/ds/DC/ADC0801.pdf

(see page 11)

 

Have a read of this, and if you want some proper help start a new thread. Thank you.

Dave