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LTSpice "Too many parameters for subcircuit type"

Discussion in 'Electronics Resources' started by ytass, Aug 6, 2008.

  1. ytass

    Thread Starter New Member

    Aug 6, 2008
    Hi all,

    This is my first post at this forum so I'm hoping it is a good experience :)

    I am using LTSpice, have created a symbol for LM13700, followed all the instructions, and are encountering an error when I try to simulate

    Too many parameters for subcircuit type "lm13700/ns" (instance: xu1)

    Please find attached the model file and subcircuit symbol. To recreate the error, place the model file into \LTC\SwCADIII\lib\sub\myLib and symbol into LTC\SwCADIII\lib\sym\myLib folder.
    Open a new schematic, place the LM13700 and try to simulate.

    Thank you for your help.
  2. Ron H

    AAC Fanatic!

    Apr 14, 2005
    I don't know how many things are wrong but the most glaring one is that your model file does not have the output buffer included.
    Attached are the LM13700 files I have used successfully. The buffer is a separate symbol and model file.