TITLE (suitable line of text for identifying the circuit)

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* Comment lines (comments start with a ‘*’)

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.TEMP <set circuit temperature>

** Also “include” other simulation set-up commands

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.OPTIONS <options for simulator>

.PROBE <commands to probe voltages and currents at defined nodes>

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.INCLUDE <include files … for example, external component models>

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<INPUT STIMULI (voltages and current sources)>

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<CIRCUIT DESCRIPTION>

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<ANALYSIS TYPE (DC, AC and Transient)>

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.END                     *  END OF INPUT FILE – THIS IS REQUIRED