TMR9002

Datasheet V1.0a TMR9002 Ultra High Sensitivity，Ultra Low Noise TMR linear sensor General Description The TMR9002 linear sensor utilizes a unique push-pull Wheatstone bridge composed of four TMR sensor elements. The TMR9002 is assembled in a 6mm × 5mm × 1.5mm SOP8 package. Features and Benefits  Tunneling Magnetoresistance (TMR) Technology  Ultra High Sensitivity(~100mV/V/Oe)  Ultra Low Noise Spectral Density (150pT/√Hz@1Hz)  Very Low Power Consumption  Excellent Thermal Stability  Low Hysteresis  Compatible with Wide Range of Supply Voltages  No need for set/reset calibration Applications  Weak Magnetic Field Sensing  Current Sensors TMR9002  Position and Displacement Sensing  Bio-medical Sensing  Magnetic Communication Transfer Curve The following figure shows the response of the TMR9002 to an applied magnetic field in the range of ±1 Oe and ±10 Oe when the TMR9002 is biased at 1 V. The following specifications are calculated over an analysis range of ±1 Oe . 1/5 Datasheet V1.0a Sensor Noise The following figure illustrates the Power SpectralDensity (PSD) of the TMR9002 self noise (Ni). The 1/fnoise is approximately150 pT/√√Hz @ 1Hz, and the white noise is approximately 4.5pT/√Hz @ 10kHz. Sensitivity temperature characteristic curve. The figure below shows the temperature characteristic curve of the TMR9002 sensor (test temperature range: -40, c ~125) 2/5 Datasheet V1.0a Pin Configuration (Arrow indicates direction of applied field that generates a positive output voltage.) Pin No. Pin Name Pin Function 5 VCC Supply voltage 6 V+ Analog Differential Output 1 7 V- Analog Differential Output 2 8 GND Ground 1、2、3、4 N/A Not connected (Top View) Absolute Maximum Ratings Parameter Symbol Limit Unit Supply Voltage VCC 3 V Reverse Supply Voltage VRCC 3 V Max Exposed Field HE 4000 Oe ESD Voltage VESD 4000 V Operating Temperature TA -40~125 °C Storage Temperature Tstg -50 ~150 °C (1) Specification (VCC=1.0V, TA=25°C) Parameter Symbol Conditions Supply Voltage VCC Normal Operating Supply Current ICC Resistance R Sensitivity SEN Saturation Field Hsat Non -Linearity NONL Offset Voltage Voffset Hysteresis Hys Resistance temperature coefficient Sensitivity temperature coefficient. Self Noise Min Output Open Typ Max Unit 1 3 V 20 (2) μA 50 kOhm 100 mV/V/Oe ±8 Oe 0.5 %FS 15 mV/V Fit ±1Oe 0.02 Oe TCR -40 ºc ~125 ºc -541 PPM/ºc TCS -40 ºc ~125 ºc -287 PPM/ºc Ni @1Hz 150 pT/√Hz Fit ±1Oe Fit ±1Oe Note: (1) 1 Oe (Oersted) = 1 Gauss in air = 0.1 millitesla = 79.8 A/m. (2) ICC= VCC/R, Iccwill vary under different R in practice and it can be customized accordingly。 3/5 Datasheet V1.0a Package Information SOP8 package drawing TMR Sensor Position Top view and side view(unit: mm) 4/5 Datasheet V1.0a MultiDimension Technology Co., Ltd. Address:No.7 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, 215634, China Web: www.dowaytech.com/en Email: info@dowaytech.com The information provided herein by MultiDimension Technology Co., Ltd. (hereinafter MultiDimension) is believed to be accurate and reliable. Publication neither conveys nor implies any license under patent or other industrial or intellectual property rights. MultiDimension reserves the right to make changes to product specifications for the purpose of improving product quality, reliability, and functionality. MultiDimension does not assume any liability arising out of the application and use of its products. MultiDimension’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 for any damages resulting from such applications. 5/5