A tiny yet highly sensitive tunnel magnetoresistance current sensor has been introduced by spintronics developer NVE. The ACT001-10E is a high-sensitivity, inline analog sensor for AC or DC measurements.
It is designed in an ultraminiature 2.5 x 2.5 mm DFN6 package with an integrated current strap. A Wheatstone bridge configuration provides a bipolar differential output proportional to the current through the strap.
Product designers can apply it to applications such as AC and DC motor control, power measurement, overcurrent protection and battery management systems. It features a linear range of ±500 mA linear range with typical sensitivity of 0.04 mV/V-mA and can function in temperatures ranging from -40 to 125 °C.
NVE is a leader in the practical commercialization of spintronics, a nanotechnology that relies on electron spin rather than electron charge to acquire, store and transmit information. Based in Eden Prairie, Minnesota, the company manufactures high-performance spintronic products including sensors and couplers that are used to acquire and transmit data. For more info, see www.nve.com.