User`s guide

6
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28 Analo
g
Behavioral Modelin
g
PSpice A/D-Equivalent
Parts
PSpice A/D-equivalent parts respond to a differential input and
have double-ended output. These parts reflect the structure of
PSpice A/D “E” and “G” devices, thus having two pins for each
controlling input and the output in the symbol. Table 6-4
summarizes the PSpice A/D-equivalent parts available in the
symbol library.
PSpice A/D-equivalent ABM parts can be classified as either
“E” part types or “G” part types. The E part type provides a
voltage output, and the G part type provides a current output.
The part’s transfer function can contain any mixture of voltages
and currents as inputs. Hence, there is no longer a division
between voltage-controlled and current-controlled parts. Rather
the part type is dictated only by the output requirements. If a
Table 6-4
PSpice A/D-Equivalent Parts
Cate
g
ory Symbol Description
Attribut
es
Mathematical
Expression
EVALUE general purpose EXPR
GVALUE
ESUM special purpose (none)
GSUM
EMULT
GMULT
Table Look-Up ETABLE general purpose EXPR
GTABLE TABLE
Frequency
Table Look-Up
EFREQ general purpose EXPR
GFREQ TABLE
Laplace
Transform
ELAPLACE general purpose EXPR
GLAPLACE XFORM
There are no equivalent “F” or
“H” part types in the symbol
library since PSpice A/D “F” and
“H” devices do not support the
ABM extensions.