Nano Second pulses

Discussion in 'The Projects Forum' started by MITTENS, Jun 6, 2013.

  1. MITTENS

    Thread Starter New Member

    Mar 5, 2009
    2
    0
    Hi
    I am trying to generate ~50Nano Second negative pulses has anyone any suggestion as to how I would produce these pulses.
    Either an individual pulse or a slow stream of pulses would do, less than 10Hz They must be negative and approx 300mV ref to gnd. Any circuit advice?.
    These pulses are for test purposes they are going to a ad8561 comparator
    Regards.
    And thanks for any help
    Mittens
     
  2. wayneh

    Expert

    Sep 9, 2010
    12,123
    3,048
    Do you care much about the shape of the pulse?
     
  3. MrChips

    Moderator

    Oct 2, 2009
    12,442
    3,361
    Use a differentiator consisting of a series capacitor followed by a resistor to GND.
     
    Last edited: Jun 6, 2013
  4. MITTENS

    Thread Starter New Member

    Mar 5, 2009
    2
    0
    Hi
    Thanks for the reply the shape is not critical. I just need negative pulses
     
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