The small-signal analysis mode of MINIMOS-NT is based on the
approach
presented in Chapter 2 and discussed in Section 2.5. After a
conventional DC step at a given operating point the simulator is switched to
the simulation mode in the frequency domain, where the device is excited by a
complex sinusoidal perturbation of infinitesimal amplitude. In comparison to
transient methods performance is better (only one equation system per frequency
step has to be solved) and the results are more accurate as time discretization
is not involved.