What is Micro-Cap 9 ?
Micro-Cap 9 is an integrated schematic editor and mixed
analog/digital simulator that provides an interactive sketch and
simulate environment for electronics engineers. Since its
original release in 1982, Micro-Cap has been steadily expanded
and improved. Micro-Cap 9, the ninth generation, blends a
modern, intuitive interface with robust numerical algorithms to
produce unparalleled levels of simulation power and ease of use.
Nothing else comes close.
Models
IGBT model
An integrated IGBT model was added. It is based upon the
implementation by Gregory Oziemkiewicz of the Hefner model.
Philips Mextram bipolar model
This is a vertical NPN or PNP bipolar model that describes
velocity saturation, base widening, Kirk effect, impact
ionization, and self heating effects.
Philips Modella bipolar model
This lateral PNP bipolar model describes current crowding,
high-level injection, and bias dependent output impedance.
Philips MOSFET Model 20
A high voltage compact LDMOS model
Philips MOSFET Model 31
A new high voltage MOSFET model
Philips MOSFET Model 40
A new high voltage Silicon-On-Insulator (SOI) MOSFET model
Philips MOSFET Model 11
A popular Philips MOSFET model suitable for low voltage CMOS
RF applications
PSP MOSFET model
PSP is the latest compact, surface-potential based model
suitable for digital, analog, and RF CMOS applications. Jointly
developed by Philips and Penn State University, the model
accounts for mobility reduction, velocity saturation, DIBL, gate
current, and lateral doping gradient effects.
IBIS component
A new set of IBIS input / output components were added,
easing the importation of IBIS models.
N-Port component
ABCD and T parameters were added.
Enhanced RLC models
Resistors, capacitors, and inductors now have optional model
parameters for parasitic resistance, capacitance, and
inductance.
Philips JUNCAP2 model
The JUNCAP2 diode model was added. JUNCAP2 is a MOSFET pn
junction model that describes depletion capacitance,
Shockley-Read-Hall currents, trap-assisted tunnelling and
band-to-band tunnelling, avalanche breakdown, and shot noise.
User source
A trigger expression was added. The source is idle until the
expression becomes true.
Digital file stimulus source
Added a repeat capability to the source.
Analysis
Enhanced convergence methods
The Junction GMIN Stepping and Pseudo Transient methods were
added to the arsenal of operating point methods. There are now
five methods:
Standard Newton-Raphson
Source Stepping
Diagonal Gmin Stepping
Junction Gmin Stepping
Pseudo Transient
Means were added to select the preferred order of usage and to
automatically search for the fastest of the methods.
RSHUNT, CSHUNT, and RP_FOR_ISOURCE global parameters were added
to provide augmented convergence. These parameters add an RSHUNT
resistance or CSHUNT capacitance from every node to ground, or
an RP_FOR_ISOURCE resistance across any current source.
Waveform Buffer
A new Waveform Buffer accumulates curves / waveforms
automatically or under user control for later plotting and
comparison. In automatic mode the buffer accumulates waveforms
up to a user-set memory limit.
Dynamic analysis mode
A new interactive analysis mode allows dynamic plot updates
as changes are made. This is an extension of Dynamic DC to
transient analysis, AC analysis, and DC analysis. Plots can
either accumulate or replace showing the effect of successive
changes in component parameters, model parameters, or user
variables. Parameter changes can be controlled by sliders,
cursor keys, or edits of any kind.
Dynamic performance tags
These new tags perform curve measurements showing the new
values each time an analysis is run or a new branch of a stepped
curve is selected.
Individual tag format
The numeric format can now be set individually for each tag.
Define variable usage
.Define variables can now be used in the X and Y Range
fields, the Maximum Time Step, and in the FFT Upper and Lower
Time Limit fields.
Numeric output improvements
Variable engineering notation within a column of numbers,
selectable row/column tabular format, and curve aliases were
added to numeric output files. Printing can be limited to a
subset of the simulation range. Numeric output is now available
for Dynamic AC and Dynamic DC.
Plot pages
Analysis plot pages with assignable names allow plot
grouping.
New wildcard syntax for plot expressions
A new wildcard syntax is available for use in the Y
Expression field of the Analysis Limits dialog boxes. This
syntax allows the user to compactly specify the plotting of many
similar expressions.
Enhanced cursor function
Cursors can now be placed on separate curves.
Data Point Only waveform style
This new plotting style shows the data point marker only,
sans line, a sometimes preferred style for FFT plots.
Enhanced Save Curve command
This command can now save in CSV format, for convenient Excel
importing.
Envelope command
This new command creates a polygon encompassing the curves of
a Monte Carlo or stepped run. It is useful for graphically
depicting the plot variation.
Stepping
The tabs of enabled stepping panels are now check-marked so
it is easier to see what is active. Part names in the dialog box
are now ordered so they go R1, R2, R3 …. R10 rather than R1,
R10, R2.
Visible region auto-scale
A new auto scale command is available that operates only over
the X portion being currently displayed on the screen.
New performance functions
Added RMS and AVERAGE performance functions
Separate select mode for schematic and
analysis
There is now a separate Select mode option for both Schematic
and Analysis.
Probe
Edit while probing
The interactive analysis feature of MC9 lets you edit the
schematic while in probe. Each edit updates the simulation and
shows the effect of the change. CTRL + SPACEBAR cycles through
the available probe modes, while SPACEBAR now toggles between
probe mode and schematic select mode.
Visual probing of macros and subcircuits
Drill down probing lets you visually probe macro schematics
or subcircuits to any level. Instead of selecting items from a
list, you can probe macro objects directly. With subcircuits,
you can probe directly on netlist nodes and names.
Expanded Probe displays
FFT, Performance, and 3D Windows are now available in Probe.
Schematic Editor
Macro embedding
The Localize command now embeds external macro files into the
circuit, for better file portability.
Circuitry region enable / disable
Circuitry can be temporarily enabled or disabled with a
simple click, allowing multiple versions of a circuit to be
contained in a single schematic. Disabled regions are ignored
during an analysis. Whole pages or regions within pages can be
controlled.
Region enable expressions
A new Region Box with an enable expression allows conditional
inclusion of circuitry.
Component panel
A new panel provides easy access to the library.
Enhanced Migrate command
An enhanced migrate command now handles macro and library
files.
Schematic display
On-schematic display of last, RMS, average, or peak values
User-assignable hotkeys
Users can set their own hotkeys for any command.
Bus
A bus connector and associated wiring routines were added.
Digital stimulus source
Common patterns are now button selectable.
Improved rubberbanding
Rubberbanding now eliminates all diagonal lines.
Multiple shape capability
Components can now have multiple shapes assigned to them.
Each shape has a shape group as well as a shape name, allowing
easy switching between shape families.
Window tabs
Window tabs allow easy visual access to schematics, plots,
histograms, performance window, etc.
Intelligent Paste command
A paste between circuits optionally adds the appropriate
model statements, subcircuits, and macros to the new circuit.
Warning messages
Parts and nodes involved in a triggered warning are now
colored. The command has been improved with the addition of
global names like R@ to refer to any and all resistors. Warning
messages are now also sent to the numeric output file.
Text control blocks
New text control blocks (.IF boolean_expression, .ELSE, .ELIF
boolean_expression, and .ENDIF) allow conditional inclusion of
text, which may control .commands, model statements, and SPICE
netlist circuitry.
.SPICE / .ENDSPICE commands
These new commands let you add SPICE netlist-defined
circuitry to the text pages of schematics without using a
subcircuit.
Improved Component Find command
The find dialog box searches as you type.
New Parameter Find command
A new search command for parameter names and descriptions in
the Attribute Dialog Box makes it easy to find parameters in
complex MOSFET and bipolar models with lengthy parameter lists.
Assignable component links
Components now have a user-assignable link for quick access
to data sheets or other technical documents from an internet URL
or a disk location.
Live text expressions
Expressions can now be buried in text and are updated as the
constituent variables change.
Mouse tips
Information is displayed at the mouse cursor tip when it is
placed over a schematic element.
Fit to Standard Values command
This finds the closest single or series/parallel combination
of standard part values that match a given R, L, or C value.
Multiple circuits password control
Many circuits can be given a password simultaneously.
Overlapping objects command
This lets you select overlapping objects with CTRL + Tab.
Common attribute control
This lets you select and move the text of multiple attributes
simultaneously.
Bill of materials export
A delimiter can now be added to make exporting easier.
RGB color stored in file
RGB color information (rather than a palette number) is now
stored in the circuit file so when the circuit is given to
someone else, the colors stay the same.
Batch file parameters
The Batch Script language has been enhanced so that
parameters can be defined and passed from the batch file to the
circuit being analyzed. Numeric output files can be named to
avoid overwriting.
New hotkeys
Node snap and text increment can now be enabled/disabled with
hotkeys.
Monte Carlo
New Tolerance dialog box
This provides a rapid way to apply LOT and DEV tolerances.
Tolerance templates can be saved and applied to future models.
Improved Load MC File command
A Load MC file dialog box lets you choose which of the cases
you want to load for review.
Performance measurement display
Selecting a case from the Histogram display list while the
plot is in Cursor mode causes the corresponding performance
function measurement to be shown.
Expressions
Multi-dimension complex arrays
Arrays were extended to many dimensions and now handle
complex values instead of just real values.
Enhanced FFTS and HARM functions
An optional bandwidth parameter was added to the FFTS and
HARM functions.
Complex impedance
Complex impedance and conductance expressions for passive
elements like Z(D1), Z(C1), Z(L1), and Z(R1) are now available
in AC.
Legendre polynomials
Legendre polynomials were added.
Lambert W function
The Lambert W function was added.
New limiting exponential functions
EXPL: if x is less than max then exp(x) else exp(max)*(x+1-max
)
EXPLP: Derivative of EXPL(x,max) with respect to x
Filter Designer
Passive elliptic filters
Passive elliptic filter capability was added.
Fit to Standard Values command
A new command was added to find the optimal series or
parallel arrangement of standard resistors, capacitors, and
inductors.
Component Editor
New right click menu
This menu lets you add, copy, delete, paste, replace, and
find information for parts.
Improved Group Delete command
Deleting a populated group is now allowed, after a warning is
given that the parts will be deleted.
Improved Move Parts command
The Move Parts dialog box allows selection of both the From
directory and the To directory. Previously, the From directory
had to be selected before invoking the Move Parts command.
Improved Add Part wizard
The Add Part wizard now asks for the model file name before
the part name, allowing it to scan the file and offer a list of
candidate names from the model file.
Macro parameters
These parameters can now be automatically displayed when
initially placed in a schematic without having to turn on the
Show flag for each one. This feature is set in the Component
library.
Remove file icon
Remove File icon is different from the Delete (part) icon.
Miscellaneous Improvements
User-adjustable recently used component list
The size of the recently used component list is now user
adjustable.
File menu view settings memory
The view settings (details, list, etc.) in the File menu are
now saved between uses. Windows XP or later.
Improved Find in Files command
The text search option now searches analysis plots and
analysis limits text expressions in addition to schematic text
objects.
Faster
Algorithmic improvements, optimized code, and an integrated,
seamless, analog/digital simulation interface contribute to the
stunning speed of Micro-Cap 9.
More powerful
Numerous features contribute to Micro-Cap 9's power. Among
them are:
Easy to use
The graphical, user-friendly interface is simple to learn and
use. Familiar SPICE models, plus extensions, are easy to apply.
Over 500 warnings and messages help you through problems, when
the error occurs, not later in a text file. Micro-Cap 9 plots
waveforms during the run, not after the run, when it is too late
to change critical values.
Highly affordable
You can easily spend twice the cost of Micro-Cap 9 for other
simulators without matching its power, speed, and ease of use.
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