View Full Version : What is the minimum detectable voltage?
11-10-2010, 09:37 PM
I'm building a drum memory system for my propeller, and before I go buy any opamps, I figured I'd check if I will need them. Does anyone know the smallest change in voltage that will make the propeller reliably regester a change?
11-10-2010, 09:52 PM
The prop has a datasheet? Wow... I'm going to go check that out now.
11-10-2010, 11:17 PM
With such a circuit you should be able to detect changes of some millivolts:
You need to adjust the Poti slightly under the input threshold voltage.
This expects a DC coupled signal.