This volt i want to show on LCD.

> Where's the problem, then, If you only want to display the voltage ???


But the power change in logarithm scale and this is my problem.

> This needs some USEFUL enlightments ... if you do not need to display the Power !!!

> Do you want to display Voltage in dBv ???

> Do you want to display Voltage in some BARGRAPH mode ??? ...

those ONLY could give any sense to your question !!!

Alain