Handling mixed AC & DC signals

Discussion in 'General Electronics Chat' started by rufus1907, Oct 19, 2008.

  1. rufus1907

    Thread Starter Member

    Aug 7, 2008
    So isnt there any way to isolate a low amplitude DC signal (1~2mV) from a low amplitude AC signal (10~20mV, 100kHz)?
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    I've moved your post into its own thread, where it will draw more responses.

    Please refrain from "hijacking" existing threads with tangent or off-topic questions. You can create new threads for new questions using the "New Thread" button on the upper left of the page.

    Handling those signals should be simple. Apply the composite signal (amplified if you want) to a couple of filters, a low pass and a high pass.

    You can get an active filter designer from this link - http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en010007.