The heart of the system is a robust 260-μΩ shunt resistor made from the lead frame of a standard HVQFN plastic package. The resulting voltage drop is then digitized by a precision ΔΣ ADC and a bandgap ...

A current sense amp indirectly measures the current flowing through a circuit by amplifying the minuscule voltage drop across a shunt resistor. The amplified signal is then sent to an ADC or ...