Differentiator circuit



The differentiator circuit outputs the derivative of the input signal over a frequency range based on the circuit time constant and the bandwidth of the amplifier. The input signal is applied to the inverting input so the output is inverted relative to the polarity of the input signal. The ideal differentiator circuit is fundamentally unstable and requires the addition of an input resistor, a feedback capacitor, or both, to be stable. The components required for stability limit the bandwidth over which the differentiator function is performed.
  • Input: 100 Hz to 2.5 kHz
  • Output: 0.1 V to 4.9 V
  • Supply:
    • Vcc = 5 V
    • Vee = 0 V
    • Vref = 2.5 V
General-purpose op amps
OPA374 Single, 5.5-V, 6.5-MHz, RRIO operational amplifier TLV9061 Single, 5.5-V, 10-MHz, RRIO operational amplifier for cost-optimized applications
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Type Title Date
* Application note Differentiator Circuit (Rev. C) 12 Aug 2021
Application note AN-31 Amplifier Circuit Collection (Rev. D) 21 Oct 2020
More literature Linear Integrated Circuits and its Applications 15 Feb 2017
Application note Handbook of Operational Amplifier Applications (Rev. B) 19 Sep 2016

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