The CT453 (3.3V) is a high bandwidth and low noise integrated zero-loss contactless current sensor that uses Allegro MicroSystems’ patented XtremeSense™ TMR technology to enable high accuracy current measurements for many consumer, enterprise, and industrial applications. It supports fixed and programmable field ranges where the CT453 senses and translates the magnetic field into a linear analog output voltage. It achieves a total error output better than ±1.0% over voltage and temperature.
This coreless current sensor is not only small in size and simple to design but it also provides effective common mode field rejection of more than -50 dB. This enables the CT453 to have greater than 90% immunity to stray magnetic fields thus having almost no impact on the accuracy of the current measurement.
The CT453 has less than 300 ns output response time while the current consumption is about 6.0 mA. The CT453 is housed in an industry standard 8-lead SOIC package and a very low profile, 8-lead TSSOP package that is both “green” and RoHS compliant.
