3.22.3 Thermal Noise Model ($TNOIMOD$ = 1)

While $TNOIMOD = 0$ is the same as before, $TNOIMOD = 1$ is the same as $TNOIMOD = 2$ in previous versions of BSIM-CMG (up to 109 beta2).

$TNOIMOD = 1$ is a correlated thermal noise model where both drain and gate noise are implemented as current sources in this thermal noise model. The correlation between two sources is independently controllable and can be tuned using $RNOIC$ parameter. The BSIM4 4.8 correlated model noise was adapted for use with a surface potential core.

Figure 12: $TNOIMOD = 1$ shows good physical behavior at high and low $V_{ds}$ from subthreshold to strong inversion regions.