MultiDimension Technology Co., Ltd. High-precision, Low-noise Linear Magnetic Sensor TMR8501

Description The TMR8501 is a compact and high-precision linear magnetic sensor, featuring low noise and fast response. This sensor is encased in a module-level package measuring 29mm × 18.5mm × 8.6mm. It boasts a measurement range of ±500 μT and supports either single or dual power supply options, with voltage ranges from ±3.3V to ±18V. Operating temperatures range from -40°C to 85°C. Utilizing advanced tunneling magnetoresistance (TMR) technology, the TMR8501 integrates a magnetic field feedback coil and a weak signal conditioning circuit. This configuration allows it to achieve a low noise level of 15 pT/√Hz at 1Hz, linearity of 0.05%, sensitivity temperature drift of 40 PPM, and sensitivity variation of 0.3% across a temperature range of -40°C to 75°C. With a bandwidth of 500 kHz, it enables high-resolution, real-time measurement of weak magnetic fields. The TMR8501 is ideally suited for applications such as environmental magnetic field monitoring, food safety testing, geophysical magnetic detection, traffic monitoring, and magnetic metal detection. TMR8501 Features and Benefits Low-noise tunnel magnetoresistance technology 15 pT/√Hz@1Hz low noise Precision magnetic field feedback technology 40 PPM sensitivity temperature drift 0.05% linear response characteristics 500 kHz wide frequency response Applications Environmental magnetic field monitoring Food safety testing Geophysical Magnetic Exploration Underground pipeline inspection Metal anomaly detection Traffic vehicle detection