The new revolutionary ALT025-10E analog TMR sensor by NVE utilises Tunneling Magnetoresistance (TMR) to achieve an extraordinary amount of signal (typically 20mV/V/mT) and linear range (±10 mT (±100 Oe)). Unlike other magnetic sensors, the ALT025-10E is able to recognize positive and negative field (South and North pole) and change the output sign accordingly, making it ideal for current sensing and proximity sensing applications where AC waveforms are expected or where the signal changes sign. The bridge signals are stable over the temperature range from -40°C to +125°C and available in a miniature TDFN6 package.

• Analog TMR differential bridge sensor
• Bipolar output – able to recognise positive and negative field and changes the output sign accordingly
• Capable of handling large signals, typically 20 mV/V/mT
• Linear range of ±10 mT (±100 Oe)
• Ultra-low temperature coefficient of output (±0.1 %/°C)
• Temperature range of −40°C to +125°C
• Up to 300 kHz frequency bandwidth
• 20 kΩ typ. device resistance for low power
• Ultraminiature TDFN6 package

ALT sensors feature Wheatstone bridge configuration, allowing them to operate as purely ratiometric devices; operating at extremely low supply voltages, their output signal is proportional to the supply voltage.

Typical applications for the ALT025-10E include:

• Motion, speed, and position control
• Non-contact current sensing
• Mechatronics and robotics

The below table gives the full specifications of the NVE ALT025-10E analog TMR bridge sensor: