Resistor noise

Resistor noise is calculated from the thermal noise formula:

$e_{n}=\sqrt{4.*k*T*R}$ $V_{rms}/\sqrt{Hz}$

where k is Boltzman's constant (1.38e-23), T is the temperature in degrees Kelvin (set by the TEMP record or defaulted to 298.16K), and R is the resistance in ohms. The calculated noise results are spectral densities with units of volts per root Hertz or amps per root Hertz.