How practical integrator works
R1 feeds the inverting node. C1 integrates the input above the feedback corner, while R2 in parallel with C1 provides a finite DC gain and a discharge path. This prevents the unlimited drift of an ideal capacitor-only integrator.
Ideal op-amp equations with ±15 V supplies. The simulated generic op amp has finite bandwidth and output limits. Keep signal levels within its linear range.
Change the form inputs or click a component value on the schematic. Choose Try in CircuitSim to simulate the configured circuit.