In This Issue    • NEW Ultralow Power WLCSP Magnetic Switches    • Magnetometer Resolution    • Upcoming Tradeshows Ultralow Power WLCSP Magnetic Switch Sensors Our latest wafer-level chip scale magnetic sensors are a line of ultralow power magnetic switch sensors. Ultralow power makes them ideal for battery operation, and their ultraminiature 0.65 mm package makes them perfect for tight spaces and provides unmatched spatial sensitivity. They're designed for 3.3-volt supplies or lithium batteries. Applications include gas and water meters, portable instruments, and harvested-power deployments. Tiny But Capable Magnetic switches turn on when a magnetic field is applied and turn off when the field is removed. These ultralow-power versions are internally duty-cycled to reduce power consumption. An integrated latch makes the output continuously available. Unique Features The applied field can be of either polarity, and the operate point is extremely stable across supply voltage and the full industrial temperature range. The open-drain output can sink up to 100 microamps. Key specifications for the new versions include:    • Choice of magnetic operate points    • Omnipolar    • 2.4 to 4.2 V supply voltage    • Power as low as 84 nW    • Full –40 to 125°C temperature range    • Ultraminiature 0.65 x 0.65 mm four-pad solder-bumped WLCSP Breakout Boards Available 0.8 x 0.4 inch (21 x 10 mm) breakout boards have pre-soldered WLCSP sensors, 0.1" headers, and 1 mm-pitch card-edge connectors. Here’s the summary of our unique line of WLCSP magnetic switch sensors:   Part No.  (click for more information)   Operate  Point  Supply  Max.  Temperature   Duty Cycling     Breakout Board             ADL925-20E 1 mT 2.4 to 4.2 V 125°C Continuous ADL925-20E-EVB01 NEW! ADL125-20E Duty Cycled ADL125-20E-EVB01         ADL924-20E 2.8 mT Continuous ADL924-20E-EVB01 NEW! ADL124-20E Duty Cycled ADL124-20E-EVB01         AHL925-20E 1 mT 0.9 to 1.8 V 85°C  Continuous  AHL925-20E-EVB01         AHL025-20E Duty Cycled AHL025-20E-EVB01         AHL921-20E 2 mT Continuous AHL921-20E-EVB01         AHL024-20E 2.8 mT Duty Cycled AHL024-20E-EVB01   See it in Action This video demonstrates the low power, small size, and high sensitivity of these remarkable new sensors:       Download the datasheet » Watch for our upcoming newsletters featuring more WLCSP sensors, including analog magnetic sensors. Magnetometer Resolution A Linearizing Digital Front-End for GMR-Based Magnetic Field Sensor IEEE Sensors Letters, Vol. 9, No. 12, Dec. 2025.     Summary: A new independent paper describes a digitization method and characterizes an AA004-02E NVE AA004 GMR analog magnetometer. The NVE sensor's three-sigma resolution was a remarkable 3.72 µT over a 0.5 to 3.5 mT field range:       The digitization method used a voltage-to-frequency convertor:     More Independent Papers »   Upcoming Tradeshows NVE will exhibit at MD&M West February 3-5 in Anaheim, California, booth 773. Use code INVITE354446 for a FREE Expo Pass.

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