NXP magnetoresistive sensors KMZ49, X3G-OH04x & X3T-OH04x Precise angular measurements with AMR sensors in SO8 or bare die These advanced sensors help realize the future of green cars. They help reduce emissions, increase vehicle stability, and add driver-independent control functions. Key features `` Accurate and reliable angle measurement `` Mechanical robustness, with contactless principle `` Wear-free operation `` Accuracy independent of mechanical tolerances `` Extended temperature range up to 150 °C `` Automotive qualification according AEC-Q101 `` Reflow capable due to MSL1 Key benefits `` Steering angle and torsion `` Headlight adjustment `` Motor positioning `` Window wipers `` Fuel level `` Mirror positioning `` General angle measurement Available in an SO8 package or as bare die, these ` high-performance anisotropic sensors help designers ` of automotive and industrial applications enhance performance while increasing efficiency, and thereby support the worldwide commitment to reduce CO2 emissions. The KMZ49 is available in a space-saving SO8 package, while the X3G-OH048, X3T-OH048, X3G-OH047, and X3T-OH047 are available as bare-die solutions. The KMZ49, X3G-OH048, and X3T-OH048 each contain eight AMR resistors, connected as two individual Wheatstone bridges aligned at 45°. ` The X3G-OH047 and X3T-OH047 double this configuration, with two single-die AMR arrangements each. All of the sensors employ the magnetoresistive effect of ` thin-film permalloy. A rotating magnetic field in the surface parallel to the chip (x-y plane) delivers two independent sinusoidal output signals, one following a cos(2α) function and the other following a sin(2α) function, where α is the angle between the sensor and the field direction. Accurate, reliable performance make all of these sensors suited for applications that require high-precision angle measurements under low field conditions (saturation field strength 25 kA/m). KMZ49 block diagram Operating characteristics for KMZ49 and bare-die solutions* Parameter Value Maximum supply voltage 9V Number of outputs 4x analog (differential) Operating temperature -40 °C to +150 °C Maximum offset voltage ± 2 mV/V Maximum offset voltage temperature coefficient ± 2 µV/V/K Typical angular inaccuracy 0.05° Maximum angular inaccuracy 0.1° KMZ49 assembly example General angle measurement *Values subject to change Order information for bare-die solutions Order number Die type Format X3G-OH047 Double Sawn wafer on foil X3G-OH048 Single Sawn wafer on foil X3T-OH047 Double Taped on reel X3T-OH048 Single Taped on reel www.nxp.com © 2012 NXP Semiconductors N.V. All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The Date of release: January 2012 information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and Document order number: 9397 750 17178 may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof Printed in the Netherlands does not convey nor imply any license under patent- or other industrial or intellectual property rights.