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The ALS31313KLEATR-2000 3-Axis Linear Hall Effect Sensor IC provides a 12-bit digital output word that is proportional to the field strength present in each of the X, Y, and Z axes. The static output values (zero magnetic field applied) are medium sized.The ALS31313 can be pre-configured for joystick mode applications, which include squat function or single-ended X, Y and Z modes. The single-ended configuration is suitable for 3D linear sensing or 2D angle sensing applications and features three different factory-programmed sensitivity operating ranges: ±500 G, ±1000 G, and ±2000 G. The sensitivity temperature coefficients are also pre-programmed to support the drift profile of neodymium magnets.

The ALS31313KLEATR-2000 is available in an 8-pin TSSOP package. The package is lead-free and features 100% matte tin plated pin frames.

Key Features

Compliant with AEC-Q100 automotive standard (pending)

Induced magnetic fields (X, Y, and Z axes)

Z-axis "squat" or button motion sensing

Capable of operating with reverse biased magnets

Suitable for battery-powered, low-voltage applications

2.65 to 3.5 V, single power supply

1 MHz I2C backwards compatible to 1.8 V

14 nA (typical) sleep ICC

 12 μA to 2 mA ICC (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 addresses configurable via EEPROM

On-chip EEPROM

Stores factory and user-configured settings

78-bit user EEPROM for increased storage space

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 axis operation

Differential mode (X and Y axes): for sliding linear sensing

Common mode (X and Y axes): enables joystick operation

1% (typical) factory-corrected sensitivity options (±500 G, ±1000 G and ±2000 G full-scale inputs)

Integrated current sensor

Wide ambient temperature range: -40°C to 125°C

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