Automotive-Grade 3D Linear Hall-Effect Sensor IC with I²C Output

ALS31313

The ALS31313 provides robust and reliable 3D magnetic position sensing for automotive applications, with I²C communication, programmable sensitivity, and advanced low-power modes.

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AEC-Q100 automotive qualification pending
Senses magnetic fields in X, Y, and Z axes
Z-axis sensing of “crouch” or push button motion
Capable of operating with back-bias magnets
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 I_CC
- 12 μA to 2 mA I_CC (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)
Single-Ended Mode (X, Y, and Z axes): enables one to three axes
Differential Mode (X and Y axes): enables slide-by linear sensing
Common Mode (X and Y axes): enables joystick operation
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 125°C