Price $949CAN
(Inventory Status: In-Stock)
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DOES NOT USE FET Switching architecture
If you have tried other current measurement devices you may have seen "artefacts" in the measurement. All other current measurement equipment use multiple shunt resistors and FETs to select which shunt resistor to use based on the magnitude of the current. Switching between FETs is susceptible to charge injection from the Gate-Source capacitance of the FET. That charge injection causes artefacts in the measurement. There is no way to fix that. FET switching architectures must also have an algorithm that must "predict" the current in order to switch the FET(s) into the right range. Some current profiles can cause such algorithms to "thrash" between ranges.
