AH4930Q 3D Linear Hall Effect Sensor

AH4930Q from Diodes Incorporated is a state-of-the-art 3D linear Hall effect sensor designed for precise magnetic field detection in automotive applications. This miniature monolithic sensor IC is sensitive to the three orthogonal components of the flux density applied to the IC, allowing for reliable and high-precision contactless rotary motion and proximity detection.

The AH4930Q integrates a 12-bit temperature sensor for accurate on-chip compensation, ensuring stable performance across a wide temperature range. With its robust signal path and 12-bit data converter via ADC, the AH4930Q provides high resolution for each measurement direction down to 1 Gauss (0.1mT) per bit, enabling precise positional accuracy. The implemented I²C interface supports seamless communication for measurement data reading and runtime programming with host systems as fast as 1 Mbps, facilitating real-time adjustments.

The AH4930Q features three operating modes plus a power-down mode, offering a power consumption-data acquisition compromise, including an ultra-low-power mode consuming only 13 µA (10 Hz), to its fast-sampling mode of 3.8 mA (3.3 kHz) for constant measurement functionality. With a 10 µs wake-up time, 4 µs response time, and wide bandwidth, it delivers ultra-fast data acquisition even for the most demanding applications.

The AH4930Q operates on supply voltages from 2.8 V to 5.5 V and a temperature range from -40°C to +125°C. Housed in the industry-standard 6-pin SOT26 (Type A1) package, the AH4930Q is ideal for applications such as rotary and push selectors on infotainment systems, stalk gear shifters, door handles and locks, and powered seat adjusters.