Diodes’ AH4930Q sensor detects magnetic fields along the X, Y, and Z axes for contactless rotary motion and proximity sensing. As the company’s first automotive-compliant 3D linear Hall effect sensor, the AH4930Q is well-suited for rotary and push selectors in infotainment systems, stalk gear shifters, door handles and locks, and power seat adjusters.
Qualified to AEC-Q100 Grade 1, the AH4930Q operates over a temperature range of -40°C to +125°C and integrates a 12-bit temperature sensor for accurate on-chip compensation. It also features a 12-bit ADC, delivering high resolution in each measurement direction, down to 1 Gauss per bit (0.1 mT) for precise positional accuracy. An I2C interface supports data reading and runtime programming with host systems up to 1 Mbps, enabling real-time adjustments.
The sensor features three operating modes and a power-down mode with a consumption of just 9 nA. Its modes balance power and data acquisition, ranging from a low-power mode at 13 µA (10 Hz) to a fast-sampling mode at 3.8 mA (3.3 kHz) for continuous measurement. Operating with supply voltages from 2.8 V to 5.5 V, the AH4930Q offers a 10-µs wake-up time, 4-µs response time, and wide bandwidth for fast data acquisition in demanding applications.
Supplied in a 6-pin SOT26 package, the AH4930Q costs $0.50 each in lots of 1000 units.
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