Dual-Axis TMR Magnetic Angle Sensor MMA253F

MDT announced the MMA253F TMR magnetic angle sensor, featuring 360-degree angle measurement with high precision and low power consumption, for use in rotary encoders, speed sensors, BLDC controllers, and a variety of industrial applications. Designed with TMR (Tunneling Magnetoresistance) technology, this dual-axis magnetic rotation sensor produces two large sine/cosine signals at very-low power consumption of 7μA per-axis. The MMA253F sensor utilizes two unique push-pull Wheatstone bridge design including eight TMR sensor elements, which produce best-in-class sine/cosine signals with peak-to-peak magnitude above 90% of the supply voltage, eliminating the need for amplification. Additionally, it demonstrates excellent thermal stability over -40°C - 125°C, thanks to the TMR Wheatstone bridge technology that accurately compensates the output against changes in ambient temperature. It can operate under a wide magnetic field range, enabling precision measurement with relaxed air-gap tolerance. The MMA253F is assembled in a small LGA8 package of 3mm x 3mm x 0.75mm.

Features and Benefits

• Tunneling Magnetoresistance (TMR) Technology
• Large Signal Output: 900 mV/V
• Very Low Power Consumption: 7μA at 1V Supply (per-axis)
• Outstanding Thermal Stability: TCOV 0.1%/°C from -40°C - 125°C
• Wide Air-gap Tolerance
• Wide Range of Supply Voltages: 1V - 5V

Applications

• Rotary Position Sensors
• Rotary Encoders
• Brushless DC Motor (BLDC) Controllers
• Contact-less Potentiometers
• Valve Position Sensors
• Knob Position Sensors

Links and Related Products

• Product Datasheet
• High-Speed, Low-Power TMR Magnetic Switches
• Low-Power TMR Magnetic Field Sensor MMLP57H
• High-Sensitivity TMR Magnetic Field Sensor MMLH45F
• TMR Magnetic Angle Sensors from MDT
• TMR Magnetic Angle Sensor MMA253F Breakout PCB
• MultiDimension Technology (MDT)
• MDT Company Profile at GlobalSpec