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IH5143 or IH5043 PSpice Model

  1. Jul 22, 2009 #1
    Does anyone have, or know where to find, a model for one of these dual supply, SPDT analog switches?
     
  2. jcsd
  3. Jul 22, 2009 #2
    My LTSpice has a voltage controlled SPST switch. Two of these could easily make a SPDT switch.
     
  4. Jul 22, 2009 #3

    berkeman

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    Staff: Mentor

    Hmm. I don't see one in the Maxim info page (the "Models" option is greyed out):

    http://www.maxim-ic.com/quick_view2.cfm/qv_pk/1504

    Is Maxim the only manufacturer?
     
  5. Jul 22, 2009 #4
    Tried Maxim and Intersil, neither has a model available. I am using Orcard 16.2, and it only has user controlled SPST or SPDT switches. I need to be able to switch inputs dynamically at 10kHz.
     
  6. Jul 22, 2009 #5

    berkeman

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    Staff: Mentor

    I would use the simplified schematic from the part datasheets, and add components to model the capacitances and other values in the datasheets. That will give you a reasonable starting point, especially for 10kHz.

    A good book for tuning up models is "Semiconductor Device Modeling with SPICE", edited by Antognetti and Massobrio. Your school library may have a copy.
     
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