AMR3001 AEC | Alldatasheet
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Technical content
Multidimension Technology co. Ltd. 1 of 4 www.dowaytech.com MDT AMR3001 No.7 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, 215634, P.R.China Ver. A AMR3001 AMR Angle Sensor Features and Benefits Anisotropy of magnetoresistance (AMR) Technology Compatible with Wide Range of Supply V oltages Wide Airgap Tolerance Excellent Thermal Stability Very Low Hysteresis Ultrasmall Package
Applications
Rotary Position Sensors Rotary Encoders Contactless Potentiometers Valve Position Sensors Knob Position Sensors General Description The output voltage of the AMR3001 TMR angle sensor is proportional to the sine or cosine of the angle of a magnetic field applied parallel to the surface of the sensor, which can be provided by a small magnet positioned above the device. The AMR3001 includes two Wheatstone bridges, which can be configured to output sine and cosine functions respectively. Each bridge includes four TMR sensor elements in a push-pull arrangement to produce a best-in-class peak-to-peak signal as large as 0.75% of the supply voltage . Additionally, the unique TMR Wheatstone bridge technology accurately compensates the output against changes in ambient temperature. This sensor is assembled in an ultra small SOP8 package Operation A small magnet, placed above the AMR3001, can be used to provide a magnetic field in any desired orientation parallel to the plane of the AMR3001 package. The following chart show a typical sensor output as a function of the angle of the applied magnetic field using a 6 mm diameter, 2.5 mm thick magnet and at 1 V supply.
Multidimension Technology co. Ltd. 2 of 4 www.dowaytech.com MDT AMR3001 No.7 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, 215634, P.R.China Ver. A Pin Out Pin No. Pin Name Pin Function
1 VccX Supply V oltage（direction X）
2 VccY Supply V oltage（direction Y）
3 Y+ Analog Differential Output1
（direction Y）
4 X+ Analog Differential Output1
（direction X）
5 GNDX Ground（direction X）
6 GNDY Ground（direction Y）
7 Y- Analog Differential Output2
（direction Y）
8 X- Analog Differential Output2
（direction X） Absolute Maximum Ratings Characteristic Symbol Notes Limit Unit Supply V oltage VCC TJ=25℃ 18 V External magnetic field strength Hext TJ=25℃ 4000 Oe ESD V oltage VESD 8 kV Storage Temperature Tstg -40~150 ºC Specification (Differential Output) Electrical Characteristics Symbol Test Conditions Min. Typ. Max. Units Supply V oltage VCC Operating 5 18 V Applied Magnetic Field B Operating 100 400 Oe Resistance one bridge Rbridge TJ=25℃,B=0 GS 1600 ohm Temperature coefficient of Resistance TCR TJ=-40℃~125℃ 1500 PPM/ºc Offset V oltage V offset TJ=25℃ -1 1 mV/V Temperature coefficient of offset voltage TCO In range:40℃~125℃ 0.04 mV/V Peak voltage Vpeak TJ=25℃ 7.5 mV/V Temperature coefficient of Peak voltage TCVpeak TJ=-40℃~125℃ -4000 PPM/ºc Angular inaccuracy Δα 0~180°,TJ=25℃ +/-0.4 º
Multidimension Technology co. Ltd. 3 of 4 www.dowaytech.com MDT AMR3001 No.7 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, 215634, P.R.China Ver. A B=200GS Operating Temperature TA Operating -40 125 ºC hysteresis output voltage V o(hys) TJ=25℃ 1 %FS amplitude synchronism k 0~180°,TJ=25℃ B=200GS 99.8 % Temperature coefficient of amplitude synchronism TCk TJ=-40℃~125℃ B=200GS 0.05 %K Notes: (1) 1 Oe (Oersted) = 1 Gauss in air = 0.1 millitesla = 79.8 A/m. (2) Custom sensor resistance may be available upon request. Please contact Multi -Dimension Technology for more details. (3) Offset voltage=(V o(max)-V o(min))/2 (4) Peak voltage=|Vo(max)-offset|, Periodicity of Vpeask: sin(2ɑ) and cos(2ɑ), respectively. Characteristic Curves
Multidimension Technology co. Ltd. 4 of 4 www.dowaytech.com MDT AMR3001 No.7 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, 215634, P.R.China Ver. A
Package Information
Unit: mm The information provided herein by MULTIDIMENSION Corporation is believed to be accurate and reliable. Publication neither conveys nor implies any license under patent or other industrial or intellectual property rights. MULTIDIMENSION Corporation reserves the right to make changes to product specifications for the purpose of improving product quality, rel iability, and functionality. MULTIDIMENSION Corporation does not assume any liability arising out of the application and use of its products. MULTIDIMENSION Corporation’s customers using or selling this product for use in appliances, devices, or systems where malfunction can reasonably be expected to result in personal injury do so at their own risk and agree to fully indemnify MULTIDIMENSION Corporation for any damages resulting from such application.