For testing purposes I would like to build a simple current amplifier using maybe only resistors, and OpAmp, probably a U741 and probably a LED to see if the current is actually being amplified or not!
I have a +5V (DC) voltage supply (Arduino) but if needed I can use a voltage source I have here (but it's not connected) to get +12V DC and -12V DC.
So, let's say I have like 20uA and I need to light a LED on. So I need a current amplifier to make the 20uA something like 10mA or so!
How can I do this?
I have a +5V (DC) voltage supply (Arduino) but if needed I can use a voltage source I have here (but it's not connected) to get +12V DC and -12V DC.
So, let's say I have like 20uA and I need to light a LED on. So I need a current amplifier to make the 20uA something like 10mA or so!
How can I do this?