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.

RMS acceleration noise (µg)

Required number input.

Equivalent noise bandwidth (Hz)

Required number input.

Infer white accelerometer noise density from measured RMS noise and equivalent noise bandwidth; colored noise needs spectral analysis. 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]

White-noise density (µg/√Hz)

The resulting white-noise density returned as a number.

• Compact electronics formulas omit some combination of tolerances, temperature drift, bandwidth, loading, parasitics, noise spectrum, nonlinearity, clipping, calibration, layout, and device-specific limits. Typical datasheet values are not guaranteed 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.

• Detector Noise Equivalent Power

  Detector noise-equivalent optical power for 1 Hz bandwidth from input-referred current-noise density and responsivity.

• Resistor Thermal Noise Current

  RMS Johnson-Nyquist current noise over an equivalent noise bandwidth; assumes a resistor at thermal equilibrium.

• Integrated Noise µVrms

  Compute total integrated noise as density x sqrt(bandwidth), expressed in microvolts rms.