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.

Initial amplitude (V)

Required number input.

Target amplitude (V)

Required number input.

Amplitude growth time constant (s)

Required number input.

Estimate time for an exponentially growing oscillator amplitude to reach a target amplitude from an initial noise seed and growth time constant. 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]

Estimated startup time (s)

The resulting estimated startup time 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.

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  Estimate how long an RL relay coil takes to reach its pickup voltage from the L/R time constant.

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  Compute the RC snubber resistor R = tau / C from a target time constant in ns and capacitance in nF.

• Ideal ADC SNR

  Estimate ideal full-scale sine-wave signal-to-quantization-noise ratio as 6.02N+1.76 dB. Oversampling, thermal noise, distortion, and reduced input amplitude are not included.