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.

Bandwidth (Hz)

Required number input.

Noise density (nV/√Hz)

Required number input.

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

Integrated noise (µVrms)

The resulting integrated noise returned as a number.

• SNR, SINAD, THD, SFDR, and integrated-noise results require explicit bandwidth, weighting, reference amplitude, windowing, harmonic set, impedance, and RMS or peak conventions. Values measured under different conditions are not directly comparable.
• 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.

• Accelerometer Noise Density

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

• ADC Total Harmonic Distortion

  Calculate THD from RMS harmonic amplitudes relative to the fundamental: sqrt(sum of harmonic squares)/fundamental. Output is percent and dBc; include only the harmonics specified by the measurement method, excluding noise and DC.

• Phase Noise Integrated Jitter Simple

  Convert integrated single-sideband phase-noise power to RMS timing jitter with sqrt(2A)/(2πfcarrier); A is the dimensionless linear noise-to-carrier integral over the chosen offset band.