Crocus Technology Unveils Industry-First TMR Contactless, Coreless, Zero-Loss, Miniature size Current Sensor

Crocus Technology CT220

The XtremeSense™ TMR-based CT220 contactless current sensor enables high isolation, high-resolution and high accuracy measurements for power monitoring applications without the need for magnetic concentrators or shields

Crocus Technology announces the CT220, a contactless current sensor, with high linearity, high-resolution, a wide dynamic range in a small form-factor targeted for multitude of current sensing applications. The CT220 is the newest member of Crocus’ current sensing product family joining the CT110 and CT100.

Crocus Technology - CT220

The CT220 is powered by Crocus’s patented XtremeSense TMR 1D technology which enables it to detect the slightest change in AC or DC current while maintaining a best-in-class 0.5% typical total output error. The CT220 is able to detect currents as low as 5 mA to over a thousand Amperes within a 1.5 mT to 15 mT operating magnetic field range. The CT220 consumes about 1.2 mA and has a sampling frequency of 200 kHz. It also has a ratio-metric analog output capable of supporting a supply voltage range of 2.7 V to 5.5 V.

The CT220 is available in a 5-lead SOT23 package. Samples and evaluation boards are currently available, and it will be in production in September 2020.