A differentiator circuit is made up of an operational amplifier in which a resistor R provides negative feedback and a capacitor is utilized on the input side.
It is sometimes referred to as a differentiating amplifier or an inverting differentiator. The capacitor's current to voltage relationship serves as the foundation of the circuit. For a gradually varying input voltage, a differentiator circuit generates a constant output voltage. For a constant input voltage, an integrator circuit generates a steadily varying output voltage. A circuit design known as an op amp differentiator generates output voltage amplitude that is proportionate to the rate of change of input voltage. It implies that the output voltage will change right away if the input voltage signal changes.
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