Hi, Good morning! I have been measuring PSRR for LDOs. It is of the order of 70dB, so I need to measure AC signal of about 300 uV from 10Khz to 500Khz. What can be a good way to measure the low amplitude AC signals? Please can anyone help me in this. Thanks for help, Best Regards, Asif Meet people who discuss and share your passions. Go to http://in.promos.yahoo.com/groups/bestofyahoo/ ------------------------------------------------------------------ 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 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