Use the Opamp Wizard to design the following opamp circuits:

  • Inverting Amplifier
  • Non-inverting Amplifier
  • Difference Amplifier
  • Inverted Summing Amplifier
  • Non-inverted Summing Amplifier
  • Scaling Adder.

The resulting circuit can then be verified by SPICE simulation directly.

  When working in the Opamp Wizard, you can return to the default settings at any time by clicking the Default settings button.

Complete the following steps to build a circuit with the Opamp Wizard:

  1. Select Tools»Circuit wizards»Opamp wizard to display the Opamp Wizard dialog box.
  2. Select the type of circuit you wish to build from the Type drop-down list. The contents of the dialog box and the diagram in the preview area change to reflect the selection.
  3. If you do not wish to include a source in the circuit, de-select the Add source checkbox.
  4. For inverting summing amplifiers, non-inverting summing amplifiers, or scaling adders, you must also enter the Number of inputs.
  5. In the Input signal parameters box, set the desired Input voltage and Input frequency values.

      The number of Input voltage and Input frequency fields differ depending on the selection you made in the Type drop-down list, and also on the value you entered in the Number of inputs field. These fields are not active if you de-selected Add source.

  6. Enter the desired values in the Amplifier Parameters box.

      The available Amplifier parameters change according to the selection you make in the Type drop-down list and the value you entered in the Number of inputs field.

  7. Click Verify. If a warning message displays, you may wish to adjust your parameters and click Verify again.
  8. Click Build circuit. The Opamp Wizard dialog box closes and a “ghost” image of the circuit is placed on your cursor.
  9. Move the cursor to the desired location and click the mouse to place the circuit.