Download MacSpice 3f5 for Mac - Electronic circuit simulator. MacUpdate Mac Science Software Downloads

DESCRIPTION

MacSpice 3f5... Circuit simulation is a way of building and testing virtual models of electronic devices. It is usually cheaper and quicker to simulate a design than to build a prototype. MacSpice, like most circuit simulators, requires a text-file description of the circuit as input. This netlist is a list of components and the nodes they connect to. Users may prepare netlists with a text editor, or derive them from a circuit diagram using a third-party schematic-capture application. MacSpice then builds a numerical model of the circuit and analyses this.

A command interpreter (shell) is used to specify the types of analyses that are required and how the results should be processed, saved or displayed. The high quality of the MacSpice command interpreter makes the automation of tasks straightforward.

MacSpice has native support for both PowerPC and Intel architecture Apple Macintosh computers. It is derived from, and compatible with, Berkeley Spice 3f5. MacSpice incorporates many improvements to Spice 3f5 - from simple bug-fixes to entirely new commands, algorithms and solution strategies. For example: the memory leaks that affected Spice 3f4 have been cured; new algorithms have been developed to facilitate the simulation of large circuits, and to reduce simulation time; MacSpice provides a robust multi-parameter optimizer and facilities for inter-process communication with other applications.

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WHAT'S NEW

Version 2.10.21:

Enhancements:

HiSIM_HV model version 1.1.1 added as level=62.
BSIM4 model updated to version 4.6.5.
BSIMSOI4 model updated to version 4.2.
Improved layout of output from the 'print' command.
Improved handling of negative-zeros in complex numbers.
Device parameters that depend on stored charge can now be now calculated during DC sweep analyses by setting the 'dcdosmsig' flag.
Warning when noise reference source does not have unit magnitude.
Minor improvements to evaluation of diode model equations.
Increased dynamic range for plot command log axes.
Improved numerical accuracy of AC analysis when the frequency range spans many decades.

Bugs fixed:

Fixed error if a simulation parameter is (un)set when no circuit loaded.
Fixed various issues with the URC transmission-line model.
Various corrections to the ltra model LTE estimates and timestep control.
Fixed crash in mutcheck() when all mutual inductors specified zero coupling.
Fixed crash when parsing 'B' source expressions with invalid node names.
Improved behaviour when used with secondary display.

REQUIREMENTS

Mac OS X 10.3.9 or later.