Product Documentation
Spectre FX Circuit Simulator User Guide
Product Version 23.1, September 2023

.op

.op  [time1] [time2]...[timeN] 

Description

Performs an operating point analysis. The Spectre FX simulator reports all the node voltages in a .ic0 file. If multiple time points are specified, the Spectre FX simulator saves the node voltages at all the given time points. If the time is not specified, the Spectre FX simulator performs the operating point analysis at time 0. If the time point in .op is greater than the stop time of the.tran analysis, the Spectre FX simulator does not perform the operating point analysis.

Only the voltage format is supported. You cannot specify any other format.

Arguments

Name Description

time

Specifies the time at which the report is printed. The unit is seconds. The default value is 0 s.

Example

.op 0 35n 200n 

Tells the Spectre FX simulator to calculate the operating point at 0 s, 35 ns, and 200 ns. The simulator generates the output files, as shown below.

example_op.ic0
example_op.ic0@3.5e-08
example_op.ic0@2e-07

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