Allegro MicroSystems Inc. Datasheets for Magnetic Sensor Chips

Magnetic sensor chips are semiconductor devices that detect physical quantities using magnetic principles.
Magnetic Sensor Chips: Learn more

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Product Name Notes
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1D Linear Position Sensor ICs
2D Angle Position Sensor ICs
3D Magnetic Position Sensors
The A139x family of micropower Hall-effect sensors minimizes current consumption with a user-selectable sleep mode, ideal for battery-powered applications. Offers ratiometric output and temperature stability. * Note: If you have...
The A1454 provides a digital 12-bit output proportional to the magnetic field strength, with two programmable sensitivity options and an I²C interface for easy system integration. Its micropower sleep mode...
The A1667 provides precise speed and position sensing for ring magnet-based applications, featuring true zero-speed operation, high accuracy, and dynamic adaptation for robust performance in automotive and industrial environments. *...
The A1684 offers a simplified two-wire solution for speed and position sensing of ring magnets or gear teeth, featuring true zero-speed operation, automatic gain control, and advanced calibration algorithms for...
The A1698 provides accurate speed and direction sensing down to zero speed, using a simplified two-wire interface. Its integrated capacitor enhances EMC performance, while sophisticated digital circuitry minimizes offsets and...
The A19250 offers precise wheel speed sensing with a user-friendly two-wire interface. Its GMR technology, integrated capacitor, and robust package ensure high accuracy, low jitter, and reliable performance in automotive...
The A19301 provides functionally safe speed and direction sensing for automotive applications, featuring ASIL B(D) compliance, a two-wire interface, and integrated diagnostics for enhanced reliability. * Note: If you have...
The A19302 offers flexible speed and direction sensing with selectable PW or AK protocol output. Its SolidSpeed Digital Architecture ensures accurate and stable performance in harsh automotive environments. * Note:...
The A19420 provides precise speed sensing for ring magnets or ferrous targets, with ASIL B compliance for functional safety in automotive applications. Features include a two-wire interface, integrated diagnostics, and...
The A19520 offers robust speed and direction sensing for automotive transmission applications, with advanced vibration-tolerant algorithms, integrated diagnostics, and ASIL compliance for functional safety. * Note: If you have issues...
The A19530 offers a versatile solution for speed and direction sensing in automotive transmission applications, with programmable features, vibration detection, and diagnostic capabilities for enhanced performance and reliability. * Note:...
The A31102 provides high-precision linear Hall-effect sensing with industry-leading noise performance and advanced diagnostics for safety-critical applications. Offers flexible programming and multiple output protocols. * Note: If you have issues...
The A31301 provides accurate 3D magnetic field sensing and angle calculation, with flexible operating modes and low power consumption for battery-powered and space-constrained applications. Supports SPI and I²C interfaces. *...
The A31315 offers precise rotary and linear position measurement in automotive environments, with analog, PWM, and SENT output options, programmable linearization, and on-chip angle calculation. Supports ASIL compliance. * Note:...
The A33002/3 offer precise angle measurements with on-chip linearization and multiple output protocols (SPI, SENT, PWM) for flexible system integration. Designed for automotive and industrial applications requiring high accuracy and...
The AAS33001 provides contactless angle measurements with on-chip linearization and incremental outputs for precise motor control and position sensing. Supports SPI, PWM, and UVW/ABI outputs. * Note: If you have...
The AAS33051 provides precise angle measurements with on-chip linearization, enhanced diagnostics, and multiple output formats (SPI, PWM, UVW/ABI) for demanding automotive applications. * Note: If you have issues logging into...
The ALS31000/A31004 linear Hall-effect sensors provide accurate and stable analog output for a variety of applications. These unidirectional devices offer a miniature package, temperature stability, and diagnostic capabilities. * Note:...
The ALS31001 provides high-accuracy linear Hall-effect sensing in a miniature through-hole package. It features temperature stability, high bandwidth, and low-noise analog output. * Note: If you have issues logging into...
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. * Note: If you...
The ATS19420 provides precise speed sensing for ferrous targets, with integrated back-bias magnet, ASIL B compliance, and differential sensing for robust performance in automotive applications. * Note: If you have...
The ATS19480 utilizes GMR technology for extended air gap sensing on ferromagnetic gear tooth targets, providing accurate speed information in challenging transmission applications. Its wide operating range and advanced algorithms...
The ATS19580 provides precise speed and direction sensing for ferromagnetic gear tooth targets, featuring GMR technology for extended air gap performance and ASIL compliance for functional safety. * Note: If...
The ATS344 provides highly accurate and customizable linear position sensing, featuring a two-wire PWM output, integrated EEPROM for flexible programming, and an integrated rare-earth pellet package for simplified design. *...
Transmission Sensor ICs
Wheel Speed Sensors

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