Use this electronics calculation for a first-pass component, converter, signal, motor, or sensor estimate when the stated operating conditions and units match the device data.

Center Volts (V)

Required number input.

Half Width Volts (V)

Required number input.

Upper and lower window-comparator thresholds from a center voltage and nonnegative half-width. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Lower Volts (V)

The resulting lower volts returned as a number.

Upper Volts (V)

The resulting upper volts returned as a number.

• Comparator thresholds and hysteresis depend on topology, resistor tolerances, input common-mode range, offset, bias current, output stage, supply, noise, and propagation delay. Confirm that every state stays within datasheet limits.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check the result against the current datasheet and worst-case operating corners, then verify the circuit or measurement with simulation and bench testing where failure matters.

• Comparator Hysteresis Band

  Comparator hysteresis-band width between upper and lower switching thresholds.

• Audio Equalizer Q

  Calculate equalizer center-frequency Q from measured lower and upper half-power frequencies.

• Audio Equalizer Center Frequency

  Geometric center frequency of a band bounded by lower and upper −3 dB frequencies.