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EC2648
CMOS High Sensitivity Micropower Hall-Effect Switch
Description
Combining chopper-stabilization techniques to provide accurate and stable magnetic switch points, the EC2648 Hall effect sensor IC is fabricated in CMOS technology. An internally controlled clocking mechanism, serving to place the high current-consuming portions of the circuit into a “power down” mode, is designed to cycle power to the Hall element and analog signal processing circuits. Periodically the device is “power on” by this internal logic and the magnetic flux from the Hall element is evaluated against the predefined thresholds. If the flux density is above or below the Bop/Brp thresholds, the output transistor is driven to change states accordingly.
EC2648 Datasheet
