HSMS-258x.LIB is the model file for the HSMS-258x diode from Agilent. OPA381.LIB is the model file for the OPA381 opamp from Texas Instruments.

You generally download these from the manufacturer website. an OPA381 opamp) you have to point LTspice to a simulation model, a text file describing the device. In order to simulate a specific device (e.g. Text preceeded with an underscore '_' will have an OVERBAR (useful to label 'active low' digital signals) Hold down Ctrl and Shift for most travel with the arrow keys Hold down Ctrl or Shift for more travel with the arrow keys Hold down Ctrl when drawing lines to draw off grid Hold down Ctrl when placing wires to route at any angle Shift+Ctrl+Alt+H: Highlights all hidden text in the schematic Shift+Ctrl+Alt+R: Renumbers all reference designators in the schematic

Attach the cursor in the Waveform Viewer window to a specific run (e.g.

Step trough component values using the.

Simulate a time-varying resistance value.

Simulate a pushbutton press using a voltage controlled switch.

Generate a triangular or a sawtooth waveform.

Generate a complex transfer function using a behavioural source.

Here you will find some tips for beginners on LTspice: LTspice is a free (and one of the best, too!) SPICE simulator developed in-house by Linear Technologies, one of the leading semiconductor companies, now part of Analog Devices.įor a very good wiki, with lots of good info, articles, examples on LTspice, visit in particular have a look at the

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