![]() options reltol=1e-4Ī continuation of the previous line. O The first non-blank character of a line defines the type of circuit element.Ī simulation directive, For example. O Letter case, leading spaces, blanks, and tabs are ignored. The node "0" is the global circuit common ground.īelow is an overview of the lexicon of LTspice: The line starting with "C1" declares that there is a 100pF capacitor between nodes n2 and ground. Note that the semicolon, " ", can be used to start a comment in the middle of a line. The line starting with "R1" declares that there is a 1K resistor connected between nodes n1 and n2. Any line starting with a "*" is a comment and is ignored. tran 3μ do a 3μs long transient analysis R1 n1 n2 1K a 1KOhm resistor between nodes n1 and n2Ĭ1 n2 0 100p a 100pF capacitor between nodes n2 and ground * The circuit below represents an RC circuit driven Lines can be comments, circuit element declarations or simulation directives. The order of the lines between the comment and end is irrelevant. Any lines after the line ".END" are ignored. The last line of the netlist is usually simply the line ". The first line in the netlist is ignored, that is, it is assumed to be a comment. The circuit to be analyzed is described by a text file called a netlist. General Structure and Conventions General Structure and Conventions ![]()
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