SBOA605 October   2025 OPA323

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2A Reusable Schematic
  6. 3Create a Project
    1. 3.1 Project Hierarchy
  7. 4Schematic Drawing for Increased Readability
    1. 4.1 Placing Passive Components
    2. 4.2 Parameters
    3. 4.3 Place Power Supplies
    4. 4.4 Wiring
    5. 4.5 Organizing for the User Experience
  8. 5Simulation Profile Setup
    1. 5.1 Aiding in Convergence
      1. 5.1.1 Modeling Application
    2. 5.2 Powerful Post-Processing
  9. 6Summary
  10. 7References

Simulation Profile Setup

Once the schematic is complete, the next step is to create a simulation profile.

If the user has created a simulation profile in PSpiceĀ®-for-TI before skip forward to Section 5.1.

To create a new simulation profile, navigate to PSpice > New Simulation Profile or through the new simulation profile icon in the taskbar shown in Figure 5-1.

 New Simulation Profile IconFigure 5-1 New Simulation Profile Icon

Name the simulation profile a representative name for ease of recognition. In Figure 5-2, the simulation is named ac to stand for an AC sweep. Select Create to continue.

 Name the New Simulation ProfileFigure 5-2 Name the New Simulation Profile

In the example, the analysis is done in the frequency domain; as a result, an AC Sweep/Noise is selected as the Analysis Type in the Analysis tab. The frequencies of interest depend on the bandwidth of the amplifier, in the example a frequency sweep from 10Hz to 100MHz is run with 10 points per decade. PSpiceĀ®-for-TI requires the declaration of MEG for mega (106), M is recognized as milli (10-3). Select Apply to save the settings on this tab.

 AC Sweep SetupFigure 5-3 AC Sweep Setup

In the Probe Window tab, select to show Last Plot every time the simulation is run. The resulting factor is that the simulation profile saves the setup (plots and equations) in the probe window and is applied on every run. Select Apply and OK to exit simulation profile settings.

 Last PlotFigure 5-4 Last Plot