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Three axis linear Hall effect sensor IC ALS31300EEJASR 500 with 12 bit digital output and sleep mode

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Three axis linear Hall effect sensor IC ALS31300EEJASR 500 with 12 bit digital output and sleep mode

Current - Supply : 3.4mA

Operating Temperature : -40℃~+85℃

Voltage - Supply : 2.65V~3.5V

Magnetic Field Range : ±50mT

Description : DFN-10-EP(3x3) Linear, Compass (ICs) RoHS

Mfr. Part # : ALS31300EEJASR-500

Model Number : ALS31300EEJASR-500

Package : DFN-10-EP(3x3)

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Product Overview

The ALS31300 is a three-axis linear Hall-effect sensor IC that provides a 12-bit digital output proportional to the magnetic field 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 features 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 highly configurable power management, including a 14 nA typical sleep mode current, the ALS31300 is well-suited for portable, battery-operated applications. It offers multiple factory-programmed sensitivity ranges and flexible I2C addressing options for easy system integration.

Product Attributes

Brand: Allegro MicroSystems
Package Type: 10-Contact DFN (EJ)
Lead Finish: 100% matte-tin leadframe plating
Lead (Pb) Free: Yes

Technical Specifications

Specification	Details
Product Name	ALS31300
Sensor Type	Three-axis linear Hall-effect
Output Resolution	12-bit digital value
Supply Voltage	2.65 V to 3.5 V single supply
I2C Compatibility	Up to 1 MHz (Fast Mode+), down to 1.8 V
Sleep Mode Current (typ)	14 nA
Low-Power Duty Cycle Mode Current (typ)	12 A to 2 mA
Package Dimensions	3 mm 3 mm 0.8 mm
Operating Temperature Range	-40C to 85C
User EEPROM	78 bits
I2C Addresses	16 unique addresses via external resistors; 127 unique addresses programmable via EEPROM
Sensitivity Ranges	500 G, 1000 G, 2000 G
Models & Sensitivities
ALS31300EEJASR-500	X/Y Channel Sensitivity: 4 LSB/G; Z Channel Sensitivity: 4 LSB/G (Full Scale: 500 G)
ALS31300EEJASR-1000	X/Y Channel Sensitivity: 2 LSB/G; Z Channel Sensitivity: 2 LSB/G (Full Scale: 1000 G)
ALS31300EEJASR-2000	X/Y Channel Sensitivity: 1 LSB/G; Z Channel Sensitivity: 1 LSB/G (Full Scale: 2000 G)
ALS31300EEJASR-JOY	X/Y Channel Sensitivity: 1 LSB/G; Z Channel Sensitivity: 0.25 LSB/G (Joystick mode)
ADC Accuracy	10-bit ENOB (Effective Number of Bits)
Factory-Trimmed Sensitivity Accuracy	1% (typ)
Integrated Temperature Sensor	Yes
Package Thermal Resistance (RJA)	65 C/W (on 2-layer board)
EEPROM Write Cycles	1000 writes

2304140030_ALLEGRO-ALS31300EEJASR-500_C2654972.pdf

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