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The CT455 is a high-bandwidth and low-noise contactless current sensor that uses Allegro patented XtremeSense tunnel magnetoresistance (TMR) technology to enable high-accuracy
current measurements for many consumer, enterprise, and industrial applications.
The device supports two standard field ranges where the CT455 senses and translates the magnetic field into a linear analog output voltage.
The CT455 is also available in a user-programmable variant, which enables end-of-line calibration of gain and offset.
While the sensor is preprogrammed to compensate for gain and offset temperature drift, the ability to adjust offset and gain relaxes mechanical tolerances during sensor mounting.
The device has less than 300 ns output response time while the current consumption is ~6 mA.
