Operational Amplifier (OpAmp) Basics

This page is not yet finished

• Simple
  • Ohm's Law
  • LED on or off
  • Voltage Divider
  • Potentiometer
• Op Amp basics
  • What an OpAmp with gain, A₀, does
  • OpAmp with some feedback (noninverting) - what happens as OpAmp gain, A₀, increase?
  • Ideal OpAmp circuit with variable feedback resistors non-(inverting)
  • Negative Feedback (noninverting) - this is how an OpAmp should be used.
  • Positive Feedback (inverting) - this is how an OpAmp should not be used.
  • Ideal OpAmp with reference voltage in place of ground (noninverting) - i.e., single supply OpAmp design
  • (optional) Negative Feedback (inverting) - this is how an OpAmp should be used.
  • (optional) Ideal OpAmp with variable feedback resistors - (inverting configuration)
• Photodiode
  • Photodiode/Phototransistor Basics (on/off)
  • Photodiode/Phototransistor with reflector
  • Photodiode/Phototransistor with finger
• Put it all together

References