Rajan, When you need Xohm termination to sink a current source, you can use 2Xohm termination each at source and destination. This way source see, 2X || 2X = X ohm sink and voltage at load is "cleaner". Basically, you have more freedom of choice to play with. ~Sen.Velmurugan@xxxxxxxxxx ------------------------------------------------------------------ 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.net List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu