analog Input for AT91SAM7X256

[jayamohan]

Hi,

I need to interface the analog (0-12V) to analog input of AT91SAM7X256 atmel controller.

The Atmel controller detects the voltage range of 0-3.3V.

How can i interface 0-12 signal to Atmel controller. can anyone please help?

Regards
Mohan.

 

[Enlightenment]

OpAmps!

https://www.edaboard.com/threads/6961/

I highly recommend that you prove out the OpAmp circuit range before connecting it to the microcontroller. I assume that you don't want to blowout the ARM chip