In summary, Allegro MicroSystems has developed a line of fully integrated magnetic current sensor ICs that provide highly accurate output voltage signals proportional to the applied current (ratiometric) that span from few amps up to 400 A for internal conductor solutions, and above 1000 A for core-based solutions. Advanced IC and packaging techniques enable bandwidth improvements up to 1 MHz as well as low noise amplifier designs that improve device accuracy throughout the entire operating temperature range (up to 150°C). The proprietary packaging techniques also provide small form factor devices (down to 3 x 3 mm² QFN) with galvanic isolation (up to 5 kV), low internal conductor values (down to 0.1 mΩ) and Allegro factory programming for stable zero amp and full scale output over temperature. There are also many integrated features that allow more flexibility that these ICs can provide, making them easy-to-use, facilitating designers’ job and hence shortening the time to market. Furthermore, the all-integrated nature of these magnetic sensors help to reduce the size of the Bill Of Materials, simplifying the procurement and quality management of these chips. These advances allow design engineers to use magnetic current sensor ICs in new applications where shunt-based solutions were used, increasing the energy efficiency, response time and reliability of the electronic systems.