Editing SPICE (section)

=== Commercial versions and spinoffs ===
Berkeley SPICE inspired and served as a basis for many other circuit simulation programs, in academia, in industry, and in commercial products. The first commercial version of SPICE is ISPICE,<ref>{{Cite book|doi=10.1109/BIPOL.1990.171136|chapter=SPICE: The third decade|title=Proceedings on Bipolar Circuits and Technology Meeting|year=1990|last1=Vladimirescu|first1=A.|pages=96–101|s2cid=62622975}}</ref> an interactive version on a timeshare service, [[National CSS]]. The most prominent commercial versions of SPICE include HSPICE (originally commercialized by [[Ashawna Hailey|Ashawna and Kim Hailey]] of Meta Software, but now owned by [[Synopsys]]) and [[PSPICE]] (now owned by [[Cadence Design Systems]]). The integrated circuit industry adopted SPICE quickly, and until commercial versions became well developed many IC design houses had proprietary versions of SPICE.<ref>K. S. Kundert, ''The Designer's Guide to SPICE and Spectre'', Kluwer. Academic Publishers, Boston, 1995</ref>

Today a few IC manufacturers, typically the larger companies, have groups continuing to develop SPICE-based circuit simulation programs. Among these are

* ADICE and [[LTspice]] at [[Analog Devices]],
* [[QSPICE]] at [[Qorvo]],
* MCSPICE, followed by Mica at [[Freescale Semiconductor]], now [[NXP Semiconductors]], and
* [[TINA (software)|TINA-TI]]<ref>[http://www.ti.com/tool/tina-ti SPICE-Based Analog Simulation Program - TINA-TI - TI Software Folder] {{webarchive |url=https://web.archive.org/web/20161019062912/http://www.ti.com/tool/tina-ti |date=October 19, 2016 }}</ref> at [[Texas Instruments]].

Both LTspice and TINA-TI come bundled with models from their respective company.<ref name="Kay2012">{{cite book|author=Art Kay|title=Operational Amplifier Noise: Techniques and Tips for Analyzing and Reducing Noise|url=https://books.google.com/books?id=0_PkTgqJD3kC&pg=PA41|year=2012|publisher=Elsevier|isbn=978-0-08-094243-8|page=41}}</ref><ref name="Mancini2012">{{cite book|author=Ron Mancini|title=Op Amps for Everyone|url=https://books.google.com/books?id=0J6GtAlcHUcC&pg=PA162|year=2012|publisher=Newnes|isbn=978-0-12-394406-1|page=162}}</ref>

Other companies maintain internal circuit simulators which are not directly based upon SPICE, among them PowerSpice at [[IBM]], TITAN at [[Infineon Technologies]], Lynx at [[Intel Corporation]], and Pstar at [[NXP Semiconductors]] also.<ref>{{Cite AV media|url=https://nescacademy.nasa.gov/video/7aa4def451454697a6ecdbbe088a6f3b1d|title=PSPICE Circuit Simulation Overview: Part 1|date=August 2012|last=Iannello|first=Chris|type=Video|language=English|time=2:39}}</ref>