Allegro has developed a range of high-current automotive-grade current sensors in packages only 1.5mm thick. The Hall sensors are differential to reject common-mode fields – from nearby current-carrying conductors, for example. The devices consist of a precision low-offset linear Hall circuit with a copper conduction path located near the die (see photo). Applied current generates ...
Read full article: 100A ac/dc automotive sensor measures from 200μΩ
from Electronics Weekly http://www.electronicsweekly.com/news/products/analogue-linear-mixed-signal-ics/100a-acdc-automotive-sensor-measures-200%ce%bc%cf%89-2016-11/
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