Quick question about operational amplifiers

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SUMMARY

A noninverting operational amplifier primarily amplifies voltage, not frequency. The gain of the circuit is determined using negative feedback. To manipulate frequency response, reactive components such as capacitors and inductors are incorporated, enabling the creation of filters like lowpass, highpass, and bandpass filters. This distinction is crucial for understanding the behavior of opamps in AC circuits.

PREREQUISITES
  • Understanding of operational amplifier fundamentals
  • Knowledge of negative feedback in amplifier circuits
  • Familiarity with reactive components (capacitors and inductors)
  • Basic concepts of AC and DC circuits
NEXT STEPS
  • Research the design and implementation of lowpass filters using opamps
  • Learn about highpass and bandpass filter configurations with operational amplifiers
  • Study the effects of frequency response in AC circuits
  • Explore advanced operational amplifier applications in signal processing
USEFUL FOR

Electronics students, circuit designers, and engineers interested in operational amplifier applications and frequency response analysis.

EEInProgress
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Homework Statement


Does a noninverting operational amplifier amplify the frequency of an input, ex. a 2 kHz square wave of amplitude 100mV peak-peak, or just the voltage?
 
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EEInProgress said:

Homework Statement


Does a noninverting operational amplifier amplify the frequency of an input, ex. a 2 kHz square wave of amplitude 100mV peak-peak, or just the voltage?

Welcome to the PF.

In general, opamps are voltage amplifiers. You use negative feedback to set the overall gain of the circuit. If you use reactive components (caps and/or inductors), you can make the gain a function of frequency. That is how you make lowpass filters (LPFs), highpass filters (HPFs), bandpass filters (BPFs), etc.

Does that help?
 
Yea, I just needed a confirmation. Been doing DC circuits in my circuit class, and then I come across questions concerning AC inputs and wasn't sure about the frequency. Thanks for the quick reply :)
 

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