NI Multisim Professional

Overview

Multisim is the package that a very large number of engineers first drew a circuit in, and it remains in use well beyond teaching because the simulation core underneath the friendly interface is a genuine industry standard SPICE engine. You draw a schematic with real components rather than idealised symbols, and the analysis you run afterwards reflects the behaviour of those parts rather than a textbook approximation.

Schematic capture handles hierarchical designs with sub circuits, multi sheet projects, buses, net naming, and a component database holding many thousands of parts from real manufacturers with their genuine models attached. Custom parts can be built in the component wizard from a datasheet, and third party SPICE models drop in directly for anything the database does not already carry.

The analysis set is what the Professional edition is bought for. Beyond simple transient and DC operating point runs there is AC sweep, parameter sweep, temperature sweep, Monte Carlo and worst case for tolerance analysis, noise, distortion, Fourier, pole zero, transfer function, sensitivity and trace width analysis. Results plot on a grapher with cursors and post processing so an expression can be built from several measured traces.

The virtual instrument panel is the feature that makes it feel like a bench. Oscilloscopes, function generators, multimeters, bode plotters, logic analysers, word generators, spectrum analysers and network analysers are wired into the schematic exactly as they would be onto a breadboard, with front panels that behave like the physical equipment. When the design settles, the layout path exports the netlist onward for board work and the manufacturing output the fabricator expects.

Key Features

• Schematic capture with hierarchical blocks, buses and multi sheet projects
• Industry standard SPICE simulation core with manufacturer supplied component models
• Component database holding thousands of real parts, extensible with a part wizard
• Transient, DC operating point, AC sweep, parameter sweep and temperature sweep analyses
• Monte Carlo and worst case analysis for component tolerance studies
• Noise, distortion, Fourier, pole zero, transfer function and sensitivity analyses
• Virtual instruments including oscilloscope, function generator, bode plotter and logic analyser
• Mixed mode simulation combining analogue circuitry with digital logic
• Microcontroller co simulation for embedded circuits with firmware in the loop
• Netlist and layout export for taking a verified design through to board fabrication

What Changed in This Build

• Component database expanded with recent power and analogue parts
• Faster convergence on switching circuits that previously needed manual tolerance tuning
• Grapher post processing rewritten with a clearer expression editor
• Improved handling of large multi sheet hierarchical projects

System Requirements

Processor	Intel or AMD 64-bit, 2 GHz or faster, 4 cores recommended
Memory	4 GB minimum, 8 GB recommended for large simulations
Graphics	Any card with a current driver, 1 GB VRAM recommended
Storage	8 GB free
Display	1920 x 1080 or higher

Release Details

Full title	NI Multisim Professional
Version string	14.3
Publisher	National Instruments
Category	CAD and 3D
Licence	Professional edition, full version
Platform	Windows 10 and 11, 64-bit
Interface language	English, German, Japanese, Chinese
Archive size	2.24 GB
Mirrors	4 active, all reporting online
Listed	refreshed 2 months ago, checked again 40 minutes ago

Installation Notes

• Install the component database in full during setup. Adding libraries afterwards means rebuilding the search index.
• Save a working copy before changing simulation tolerances, since convergence settings that fix one circuit often break another.
• Keep custom parts in a user database rather than editing the master, otherwise an update overwrites your work.

Before You Start

Read the notes above before running setup. Most of the problems people write in about are covered there, and almost all of them come down to an older version of the same software still being installed, a graphics driver that predates the release, or a security suite quarantining part of the package mid install.

There is no archive password on this or any other entry in the library. If something you downloaded elsewhere claims to come from here and asks for one, it did not come from here. Nothing on this site is behind a survey, a shortener or a countdown either.

If the entry does not match what the page describes, say so on the contact page and include the version string from the release details table. Reports naming a specific version get checked first because the checker can reproduce them straight away.

Frequently Asked