Analog Discovery Legacy - Using the Power Supplies

The Analog Discovery Legacy is the original version of the Analog Discovery.

Figure 1. The Analog Discovery legacy.

Setup and calibration is the same as for the Analog Discovery 2, so if you want some help getting your legacy set up and calibrated, or installing WaveForms, check out this quick start Instructable collection.


Once you have your Legacy and WaveForms all set up, open the Power Supplies by clicking on the “Supplies” button.

Figure 2. Power Supplies button.

This will open the power supplies window.

Figure 3. Power supplies window.

At the top you have three options: “File”, “Control”, and “Window”.

  • “File” lets you Save the current power supply settings as a new project, You can then Open that project to set the power supplies to the saved setting. You can Export the power supply settings, either as an image or as raw data in *.csv, *.txt, or *.tdms format. You can also Close the power supplies window from here.
  • “Control” gives access to the Run and Stop functions.
  • “Window” lets you view other Waveforms tools you have open, the main Waveforms screen, or the Help window.

Below that is the Master Enable button, which is the run/stop button. Figure 4. Master Enable button.

Next you have the ready/on/off buttons for each power supply. If the master enable is off, you can switch between ready and off. With master enable on, you can switch between on and off.

V+ is set at +5 V, while V- is set at -5 V. The accuracy of the output value will depend greatly on whether your device is calibrated correctly. Figure 5. Positive and negative supplies.

At the very bottom, there is a meter that indicates how much current the device is outputting. Keeping it low is better. If you do draw more power than the device can output, the program will fault and turn off all tools and outputs. This will happen if any output pin is connected directly to GND, including both power supply pins. Simply remove or change whatever is drawing a high current and try again.