The practical applications of this circuit are to generate a "ramp" voltage and to measure the area under the peaks in recorded spectra or chromatograms.
Click on the run/hold switch to start and stop the integrator. Drag the slider to vary the input voltage. Click on the reset switch to reset integrator to zero.
This slider controls the input voltage. The current through the input resistor is given by Vin/R. (The inverting input of the op amp is virtual ground). The input current flows only through the feedback capacitor C. The current flowing into the feedback capacitor generates an output voltage equal to -Vin*t/RC
Note: The rate at which the output of the integrator changes in this simulation depends on the speed of your computer. The rate varies in the proper way with respect to R, C, and the input voltage, but its absolute value will not be correct on all computers.
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