Op-Amp, Inverting and Non-Inverting Amplifiers
 

Op-Amp, Inverting and Non-Inverting Amplifiers problem 14


The circuit for an inverting amplifier incorporating an ideal operational amplifier (op-amp) is shown in the figure below.




  • calculate the gain of the amplifier.


  • When the op-amp is saturated, the potential difference across the LED is . Calculate the minimum resistance of resistor R so that the current in the LED is limited to .


 

main author and content editor: Ebenezer Famadewa