Crocus Technology Unveils Industry-First TMR Contactless,

Coreless, Zero-Loss, Miniature size Current Sensor

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

Santa Clara, California, August 12, 2020 – Crocus Technology Inc., the leading supplier of

disruptive XtremeSense™ Tunnel Magneto-Resistance (TMR) sensors, today 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.

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 takes advantage of Crocus’ state-of-the-art XtremeSense TMR technology to deliver

an innovative contactless current sensing solution with extremely high sensitivity. This enables

customers to detect a wide range of currents safely and without sacrificing resolution at low

currents. The CT220 is a zero-loss device enabling current monitoring at very low power for

battery-powered applications such as drones and IoT devices. It allows system designers the

ultimate flexibility to place this miniature sensor wherever power monitoring is required,” says

Zack Deiri, President and CEO of Crocus Technology. “The coreless and contactless CT220

simply enables a multitude of applications including solar and power inverters, power supplies,

battery management systems, white goods, industrial appliances, and power distribution units

(PDUs). It is an ideal replacement for bulky current transformers, low sensitivity and low resolution

Hall-based current sensors, and shunt-based applications where isolation and temperature

stability are required.”

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.

About Crocus Technology

Crocus Technology develops and manufactures state-of-the-art magnetic sensors based on its

patented XtremeSense™ TMR sensor technology. Crocus’ disruptive magnetic sensor

technology brings significant advancements to IoT and smart devices, industrial, consumer,

medical, and automotive electronics applications demanding high accuracy, high resolution,

stable temperature performance, and low power consumption. Crocus is headquartered in Santa

Clara, California. For more information, please visit http://www.crocus-technology.com