Product Overview

The ALS31300 is a three-axis linear Hall-effect sensor IC that provides a 12-bit digital value proportional to the magnetic field measured along the X, Y, and Z axes. It is preconfigured for 3D sensing applications including head-on linear motion, slide-by position sensing, and rotation angle measurements. The device also supports a joystick mode with a low-gain option for the Z-axis, enabling the use of back-bias magnets for return-to-zero force. With its advanced low-power management, including a sleep mode consuming only 14 nA (typical), the ALS31300 is ideal for portable, battery-operated applications. It features an industry-standard I2C interface for easy system integration and is supplied in a compact 3 mm 3 mm 0.8 mm, 10-contact DFN package.

Features and Benefits

• X- and Y-axis sensing of joystick position
• Z-axis sensing of crouch or push button motion
• Capable of operating with back-bias magnets for joystick return-to-zero
• Ideal for battery-powered, low-voltage applications
• Flexible 12-bit ADC with 10-bit ENOB
• 1% (typ) accurate factory-trimmed sensitivity options
• Integrated temperature sensor
• Wide ambient temperature range: 40C to 85C
• 10-contact 3 mm 3 mm 0.8 mm DFN package for space-constrained applications

Product Attributes

• Brand: Allegro MicroSystems
• Package: 10-Contact DFN (EJ)
• Lead Free: Yes
• Leadframe Plating: 100% matte-tin

Technical Specifications