m2k Power Supply & Voltmeter Functions

This video demonstrates the Analog Devices ADALM2000’s (m2k) power supply and digital voltmeter features.


The m2k has two programmable power supplies that are adjustable from 0 to +5V and 0 to -5V respectively. The only limitation is when the m2k is powered by a computer’s USB port the current is limited to 50 mA for each supply. To deal with this issue the m2k can be powered by an external +5VDC, 2.5A power supply via a Micro B USB cable. Note this external power supply does not ship with the m2k but is a good purchase to make.


The m2k also has a two-channel voltmeter that measures DC and AC voltages ranging to ±20V. So, the user can measure voltages/signals that are between +20 to -20 volts. The voltmeter uses the same inputs as the m2k’s oscilloscope, henceforth the user can only take voltmeter readings or oscilloscope readings one-at-a-time and not simultaneously. Selecting either function while the other is active will disable the other feature.


The circuit being used in this video is a simple series circuit made of five 1 kΩ resistors, powered by the m2k’s power supply set for +5VDC. And the voltage at several test point will be measured using the m2k’s voltmeter function. Again, I want to state the m2k can only measure voltages and NOT CURRENT!


Hopefully, this will get the user an entry level knowledge on two of the ADALM2000’s features, the power supplies and voltmeter.


JoeD