Comparator & Schmitt Trigger Calculator
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Electrical & Electronics

Comparator & Schmitt Trigger Calculator

Calculate switching thresholds and hysteresis, or choose standard feedback resistors.

01

Your inputs

Design for target thresholds

R1 stays fixed; Rf uses the selected series. Vref is adjusted to preserve the threshold midpoint.

Ideal push-pull model with specified output voltages. Check comparator input range, offset and resistor tolerances; internal hysteresis is excluded.

02

Your results

Lower threshold · VT−
—
Upper threshold · VT+
—
Hysteresis width
—
Threshold midpoint
—
Hysteresis curve
Formula—

How to use this tool

  1. Circuit topology: Inverting / Non-inverting.
  2. Design for target thresholds: Lower threshold, Upper threshold.
  3. Formula · Print results.