ADC

beenthere

Joined Apr 20, 2004
15,819
It can only convert voltage - you have to use the current through a resistor for the measurement. Current through a resistor makes a voltage across the resistor proportional to the current. A small value resistor will not disturb the circuit too much, and a good quality op amp can make the voltage large enough for the ADC to handle.
 

Thread Starter

Cerkit

Joined Jan 4, 2009
287
Ok. So assuming I do that would it would be possible to alternate the input to the ADC depending on whether I want to measure voltage or current. Using a decoder on the input signal for instance??
 
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