Introduction
AMR stands for Anisotropic Magneto Resistance. This refers to a component whose resistance decreases when a magnetic field is applied, and its function depends on the direction of the magnetic field lines relative to the component (anisotropy).
Features / strengths
Murata’s AMR magnetic sensors are suitable for flexible configuration and design. Even if the magnet’s N and S poles are reversed, the sensor’s operation remains unchanged. Compared to Hall ICs, this compact and highly precise AMR sensor offers a wider detection range, allowing for more flexible placement of magnets and sensors, which can help reduce installation errors during housing assembly and mounting.
On the other hand, since the AMR sensor is not structured like a reed switch, it achieves a smaller size and higher reliability.
Murata’s new AMR magnetic sensor features a small footprint, low voltage compatibility, and low power consumption, making it especially suitable for consumer medical products such as CGM devices, insulin pumps, disposable temperature patches, and similar application scenarios and equipment.
Specification in detail
Operating Voltage
1.2～3.6 V
Power Consumption
20nA（Vcc = 1.5V）, 80nA（Vcc = 3.0V）
Dimensions
1.0 × 1.0 × 0.45 mm
Operating Temperature Range
-10 ～ +60°C
