Help needed- converting 1 microsecond TTL pulses to 10 V pulses

Discussion in 'The Projects Forum' started by krishnakumardn, Jul 23, 2012.

  1. krishnakumardn

    Thread Starter New Member

    Jul 23, 2012
    2
    0
    In my project, I need to convert TTL pulses of 1 micro second pulse width to be converted in to pulses of 10 V- 20 V pulses of 1 micro secod pulses. Only I need to change the voltage level to be shifted from 5v to 10V or above without changing the pulse width 1 microsecond. My signal conditioning board gives a output of TTL pulses of high frequency of the order of 100KHz. This has to be counted by using aa digital input add-on card which accepts pulses of 10 v or above. Kindly help with any circuit. I tried with normal OPAMP circuit (LM324) and it failed. I read that LM 218/318 may suit for this application because of high slew rate. But it is not available. Can any body suggest me? Thanking you

    with regards
    Krishnakumar D N
     
  2. crutschow

    Expert

    Mar 14, 2008
    13,042
    3,243
    You could use a level shifter IC such as the CD4504 or a TTL buffer (which is faster) with an open collector output (connect an output load resistor to 10V) such as the 7407 or 7417.
     
  3. krishnakumardn

    Thread Starter New Member

    Jul 23, 2012
    2
    0
    Thank you very much. It really worked for me.

    with regards
    Krishnakumar
     
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