NI Offers Free SPICE Integration VIs for LabVIEW Development Software

11/26/2003 - Design engineers now can download free SPICE integration VIs to integrate National Instruments LabVIEW graphical development software with SPICE and PSpice electronic design automation (EDA) tools from vendors including Cadence, Synopsis and Mentor Graphics. This integration makes it easier for engineers to test electronic designs by comparing simulations with real-world data.

With the SPICE integration VIs, engineers using SPICE circuit simulators can easily import simulated signals from circuit design into LabVIEW, where they can compare expected results of their circuit design with real-world prototype measurements. By combining SPICE simulation results with measurement data from design prototypes in LabVIEW, designers can more quickly iterate through the design process and shorten time-to-market of cell phones, PDAs and other electronic products.

Engineers can generate stimulus signals and acquire and analyze circuit responses in LabVIEW using PXI modular instruments or traditional stand-alone GPIB instruments. They then can quickly visualize discrepancies between simulated results and actual measurements on LabVIEW graph displays to rapidly identify errors and tune performance during the development process.

The SPICE integration VIs work with any SPICE simulator that can output results in Berkeley SPICE, Orcad PSpice, or Multisim files from Electronics Workbench. The VIs are available free of charge at

About National Instruments
National Instruments ( is a technology pioneer and leader in virtual instrumentation -- a revolutionary concept that has changed the way engineers and scientists approach measurement and automation. Leveraging the PC and its related technologies, virtual instrumentation increases productivity and lowers costs for customers worldwide through easy-to-integrate software, such as the NI LabVIEW graphical development environment, and modular hardware, such as PXI modules for data acquisition, instrument control and machine vision. Headquartered in Austin, Texas, NI has more than 3,000 employees and direct operations in 40 countries. In 2002, the company sold products to more than 25,000 different companies in more than 80 countries around the world. Readers may obtain investment information from the company’s investor relations department at (512) 683-5090, by sending e-mail to or on the Web at

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