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.

Input current (A)

Required number input.

Output current (A)

Required number input.

Compute the linear current gain as the ratio of output to input current. 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]

Gain (A/A)

The resulting gain 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.

• Linear Power Gain

  Compute the linear power gain as the ratio of output to input power.

• Linear Voltage Gain

  Compute the linear voltage gain as the ratio of output to input voltage.

• Voltage Attenuator Ratio

  Compute the linear voltage attenuation ratio from output over input voltage.