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.

Minimum High (V) (V)

Required number input.

Maximum Low (V) (V)

Required number input.

Find the vertical eye opening at the sampling instant as the minimum high level minus the maximum low level; a negative value means overlapping level distributions. 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]

Eye Height (V) (V)

The resulting eye height (v) returned as a number.

• Setup, hold, jitter, and eye estimates require a consistent timing reference and sign convention. Clock uncertainty, skew, data-dependent jitter, process-voltage-temperature corners, routing, crosstalk, and statistical margins must come from the implementation and interface specification.
• 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.

• Dynamic Range dB

  Compute the dynamic range in decibels as the maximum signal level minus the noise floor, both in dBm.

• Eye Width Estimate

  Find the horizontal eye opening between the latest left crossing and earliest right crossing in one unit interval.

• Required Heatsink Thermal Resistance

  Calculate maximum allowable heatsink-to-ambient thermal resistance from junction-temperature limit, ambient temperature, dissipation, junction-to-case, and case-to-sink resistances. A negative result means the assumed stack cannot meet the limit.