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3D Linear Hall-Effect Sensor IC with I²C Output and Low-Power Management

ALS31300

ALS31300 Product Image

The ALS31300 simplifies 3D magnetic position sensing, providing 12-bit digital output for each axis (X, Y, Z), I²C communication, and advanced low-power modes for battery-powered applications.

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  • 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
    • 2.65 to 3.5 V single supply operation
    • 1 MHz I2C compatibility down to 1.8 V
    • 14 nA (typ) Sleep ICC
    • 12 μA to 2 mA ICC (typ) in low-power duty cycle mode
  • Industry standard I2C interface for easy system integration
    • Up to 1 MHz (Fast Mode+) I2C communication
    • 16 selectable addresses via external resistor divider
    • 127 available address configurable via EEPROM
  • On-chip EEPROM
    • Stores factory- and user-configured settings
    • 78 bits of user EEPROM for additional storage
    • On-chip charge pump for easy programming
  • Flexible 12-bit ADC with 10-bit ENOB (Effective Number of Bits)
  • 1% (typ) accurate factory-trimmed sensitivity options (±500 G, ±1000 G, and ±2000 G full-scale input)
  • Integrated temperature sensor
  • Wide ambient temperature range: –40°C to 85°C
  • 10-contact 3 mm × 3 mm × 0.8 mm DFN package for implementation in low-profile, high-density PCB designs and space-constrained applications

The ALS31300 is supplied in a 3 mm × 3 mm × 0.8 mm, 10-contact DFN package (“EJ”). This small footprint package is lead (Pb) free, with 100 % matte-tin lead-frame plating.

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Documents Found: 32
Document Type Document Name
Application Note
3D Hall-Effect Sensor Magnetic Tamper Detection Smart Home Systems
Application Note
January 31, 2023
PCB Ground Plane Optimization for Coreless Current Sensor Applications
Application Note
Advanced Power Management Using the ALS31300 and ALS31313 3D Hall-Effect Sensor ICs with I2C Output
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3DMAG Position Sensors
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Enhancing Robotic Design
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Documents Found: 32
Document Type Document Name
Gerber File
ASEK31300 Gerber Files
User Guide
ASEK31300 Demonstration Board User Manual

Mikroe Demoboards


PWR Meter 3 Demo Board

3D Hall 9 Click is a compact add-on board used to detect the strength of a magnetic field in all three dimensions. This board features the ALS31300, a 3D linear Hall-effect sensor with digital output and advanced low power management from Allegro Microsystems. 


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