Cadence- output pane, subtraction of two signals

 

Do these steps in ADE:

1. Outputs->Setup
2. Hit the "Open" button to open the calculator
3. On the tran tab, select vt.
4. Click on one node on the schematic, then the other
5. Hit the "-" button in the calculator. The buffer should show something like VT("/outp")-VT("/outn") (depending on the nets you've chosen)
6. In the Setting Outputs form, hit the "Get Expression" button.
7. Fill in the Name field (if you like) to something you find meaningful (e.g. "diff")
8. Hit the Add button
9. Cancel the Setting Outputs form.