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462 4. Appendix
4.3 Model Library
The Analog Insydes model library provides full-precision SPICE-compatible models for the most
important devices such as Diodes (Section 4.3.1), BJTs (Section 4.3.2), MOSFETs (Section 4.3.3), and
JFETs (Section 4.3.4).
Each section contains two subsections describing the large-signal as well as the small-signal model.
Following an equivalent circuit schematic the particular model parameters are introduced including
their default values and a short description. Note that the default values of the small-signal
parameters are given symbolically with the suffix "$ac" as they are automatically generated by
ReadNetlist (Section 3.10.1). Each model section concludes with a description of those parameters
which are influenced by the automatic model-complexity reduction controlled via the global Analog
Insydes option ModelLibrary (Section 3.14.4).
4.3.1 Diode
syntax
{Dname, {n −>A, n −>C}, Model−>Diode, Selector−>selector, parameters}
denotes a subcircuit reference for a Diode
Subcircuit reference for Diode.
A
C
Valid values for selector are: Spice, SpiceDC, SpiceAC, and SpiceNoise. Possible parameters are
described below.
Large-Signal Model
The analog behavioral model included in the Analog Insydes model library has the following port
characteristics:
Voltage[A,C]
A
C
Current[A,C]
where A denotes the Anode and C the Cathode, respectively. The port currents can be expressed in
the port variables as follows: