The video introduces the concept of using an op-amp as a differentiator, distinguishing it from a differential amplifier and explaining that a differentiator outputs the derivative of the input signal.

A differentiator circuit is analyzed with a brief explanation on how swapping resistor and capacitor positions in an integrator circuit can configure it as a differentiator.

The video describes how different input signals, such as DC, square waves, sinusoids, and triangle waves, produce specific outputs when used with a differentiator circuit.

Discussion on practical limitations of simple differentiators, including sensitivity to high-frequency noise and low input impedance at high frequencies.

Suggested solutions for the differentiator’s limitations, such as adding resistors and capacitors for stability and achieving appropriate frequency responses.

Examples are provided illustrating the calculations for output signals when applying sinusoidal and triangular wave inputs to a practical differentiator circuit.

The video wraps up with a summary of designing differentiator circuits with op-amps, pointing out key considerations for practical applications.