If you do a google on hysterisis you will be swamped by magnetic related articles etc. Maybe the original question was regarding delayed response to settle down reflections, overshoot issues which may be called by some uninformed as hysterisis. The cost is, of course, system slowdown if you simple solve si-related problems with "hysterisis" Hans Mellberg Engineering Manager ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu