This application note introduces the newly released AMC0106M05 and AMC0106M25 functionally isolated modulators. The M05 variant supports a ±50mV, the M25 variant a ±250mV linear input range. Both devices come in a small, lead-less package. The AMC0106Mxx devices enable the design of an accurate and reliable, shunt-based current-sensing subsystem for three-phase inverters with a small form-factor. Typical applications are servo drives, and collaborative or humanoid robots powered from sub-60V power supplies. A circuit design and layout example for a 48V 3-phase GaN inverter with boot bootstrap supply with a ±50A linear current range is presented. The design is based on the AMC0106M05 variant and 1mΩ shunt. Test results are presented showing that a measurement resolution up to 14 effective number of bits (ENOB) is achieved. Phase current measurement is not affected by PWM switching, validating the high immunity against common-mode transients. And finally, this has shown that ripple voltage caused by the bootstrap supply has no effect on the phase current measurement for a wide range of PWM duty cycles.