Differentiator

A differentiator based on an operational amplifier is most often built on the basis of an inverting amplifier and is shown in Fig. 1.

Differentiator based on an operational amplifier
Fig. 1. Differentiator based on an operational amplifier

Such a connection circuit differentiates in time and inverts Vin and gives the output Vout, determined by the formula:

Vout = –R × C × (dVin / dt)

The circuit can be considered as a high-pass filter (HPF), which, together with a low-pass filter, is used in various automation devices and analog signal processing.

Use our online Differentiator Calculator.


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11/27/2022
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