Task 11: Creating an AC Sweep Analysis
- Continuing from the previous task, click Analysis Settings
in SPICE Controller Manager.
- Select AC sweep Analysis and click OK.
- On the SPICE Controller
Manager ribbon, select Insert Analysis
Condition
. The Analysis Condition dialog is displayed.
- In the Insert Analysis Conditions dialog, select AC Sweep and click OK.
- In SPICE Controller Manager, double-click AC Sweep 1. The AC Sweep - SPICE Controller Manager dialog is displayed.
- In the dialog, specify the following.
- Sweep type: Decade
- Start frequency: 1
- Stop frequency: 1meg
- Points per decade: 10
- Click OK to apply the settings and close the dialog.
- On the SPICE Controller
Manager ribbon, click Save
to save the current data.
- On the ribbon click Net
Output, Simulation
. This outputs an updated SPICE netlist. LTspice launches, and performs a simulation using the data in eCADSTAR SPICE Controller.
Note
The LTspice application may open with no items selected or displayed.
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The LTspice application may open with no items selected or displayed.
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- In the LTspice application, click Plot Settings on the ribbon and select Visible Traces.
- In the Visible Traces dialog, select the signal V(out) and click OK.
- After clicking OK, the signal is shown on the graph.
Note
In the frequency characteristics, where frequency is shown on the x-axis, the voltage amplification rate drops when the frequency exceeds about 100 kHz, due to the slew rate of the op-amp.
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In the frequency characteristics, where frequency is shown on the x-axis, the voltage amplification rate drops when the frequency exceeds about 100 kHz, due to the slew rate of the op-amp.
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- Close the LTspice application and SPICE Controller Manager. Return to eCADSTAR Schematic Editor.