Massachusetts-based Aceinna has a range of current sensor chips based anisotropic magnetoresistive (AMR) technology, using an insulating substrate with 4.8kV isolation. Called MCA1101, the chips measure bi-directional current, both ac and dc signals, with 1.5MHz bandwidth and 300ns rise-time. Current input and output pins (four pins each, see diagram) are on the same side of the ...

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