Signal Chain Designer: Watch out for Output Impedance

2024年06月06日

The impedances of two stages can interact and not give you the gain you expect. If the drive stage has output impedance the same order of magnitude as the input impedance of the 2nd stage, the 2nd stage will load the first. This results in less gain than desired. You can see this issue both in the gain vs. frequency plot as well as the nominal gain in the DC error view.

Signal Chain Designer: Watch out for Output Impedance

2024年06月06日

The impedances of two stages can interact and not give you the gain you expect. If the drive stage has output impedance the same order of magnitude as the input impedance of the 2nd stage, the 2nd stage will load the first. This results in less gain than desired. You can see this issue both in the gain vs. frequency plot as well as the nominal gain in the DC error view.