electrical4u.com logo Home MCQ Engineering Calculators Videos Basic Electrical Circuit Theories Electrical Laws Materials Batteries Illumination Generation Transmission Distribution Switchgear Protection Measurement Control System Utilities Safety Transformer Motor Generator Electrical Drives Electronics Devices Power Electronics Digital Electronics Biomedical Instrumentation

Op Amp Differentiator

Published on 24/2/2012 & updated on 5/9/2018
HOME / CIRCUIT THEORY / OP-AMP
Differentiator is an op amp based circuit, whose output signal is proportional to differentiation of input signal.
An op amp differentiator is basically an inverting amplifier with a capacitor of suitable value at its input terminal. The figure below shows the basic circuit diagram of an op amp differentiator. Op Amp Differentiator

We will first assume that the op amp used here is an ideal op amp. We know that the voltage at both inverting and non inverting terminals of an ideal op amp is same. As the electric potential at non inverting terminal is zero since it is grounded. The electric potential of inverting terminal is also zero, as the opamp is ideal. Because, we know that the electric potential at non - inverting and inverting terminals. It is also known to us that the current entering through inverting and non inverting terminal of an ideal op amp is zero.

Related pages
Op Amp Differentiator

Considering, these conditions of an ideal op amp, if we apply Kirchhoff Current Law at node 1 of the op amp differentiator circuit, we get, The above equation shows that the output voltage is the derivative of the input voltage.




Please Rate this Article
0
⚑ 0 total
5
4
3
2
1


New Articles
More Articles on Circuit Theory
Circuit and NetworkCircuit TheoremCircuit AnalysisTwo Port NetworkRL CircuitMatrixRLC Circuit
Articles Categories
Write for Us
Home
Basic Electrical
Electric Transformer
Electric Generator
Electric Motor
Electrical MCQ
Engineering Calculators
Video Lectures
Electrical Generation
Electric Transmission
Switchgear
Electric Protection
Electrical Measurement
Electronics Devices
Power Electronics
Digital Electronics