System dependency in instruments and accessories is known to be an issue not only in the field, but also in laboratories. With a standalone power supply and relying on 50 Ω input only, PMK probes are independent from the measuring instruments and as such, the small housing and the distinctive T-shape of the TETRIS® probe head fits easily, since multiple TETRIS®'s probes can connect to adjacent pins simultaneously. Accordingly, connections to smaller parts is achieved by either by an IC contacting system, or clamps - also available at PMK.
All in all, the choice of an active probe instead of a low-Z passive one is simple. Because passive probes with their relatively high input capacitance and load the signal source is set above 100 kHz, the TETRIS® active probe can easily manage high input impedance when it crosses into the GHz-range.
Review of Key specifications
Apart from the ability to connect to other systems, other features include, high Input Impedance as well the usability with any 50 Ω Measuring Instrument. However, the biggest selling point for this device is its agility and versatility that makes adaptable to a wide range of situations. Indeed, that’s why the Tetris Active Probes are able to support a vast number of accessories derived from different tips & pins, leads, adapters, and other popular clips from other applications and manufactures. These include, interchangeable spring tips, contacts adjacent pins in 2.54 mm pitch, probe tips, ground connectors, ground leads, sprung hooks, micro clips, adapters, marker bands, as well as power supplies.
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