i want to make my power supply (0-15v) with digital out put using icl7107 .
please tell me how i make it .how this adc work

 

Your "output" is a display, isn't it?

 

Follow the example circuit in the LCL7107 datasheet.

I investigated this very application for a friend who is building a power supply, and decided that the ICL7107/7106 circuit was just too much work, so we did this:

http://www.cappels.org/dproj/10_Bit...ng_LED_Digital_Panel_Meter_Using_ATMEGA8.html

 

Hey DickCappels
Do you happen to know any Voltmeter based on PIC's.
I been wanting to make one for my supply.
I already have the 7107's but it does not give 2 decimal read outs.
The one you suggested is perfect but I donno atmel yet.