Magnetic Sensors - Linear, Compass (ICs)

Image Part Number Description / PDF Quantity Rfq
DRV5055A1QLPG

DRV5055A1QLPG

Texas Instruments

SENSOR HALL EFFECT ANALOG

755

DRV5053OAQLPGMQ1

DRV5053OAQLPGMQ1

Texas Instruments

DRV5053-Q1 AUTOMOTIVE, 2.7 V TO

28439

SS94A2

SS94A2

Honeywell Sensing and Productivity Solutions

SENSOR HALL ANALOG CERAMIC SIP

501

SS496A1

SS496A1

Honeywell Sensing and Productivity Solutions

SENSOR HALL ANALOG RADIAL LEAD

9935

A1359LLETR-RP-T

A1359LLETR-RP-T

Allegro MicroSystems

SENSOR HALL ANALOG/PWM 8TSSOP

0

MLX90393ELW-ABA-012-RE

MLX90393ELW-ABA-012-RE

Melexis

SENSOR HALL I2C/SPI 16QFN

1036

EQ730L

EQ730L

Asahi Kasei Microdevices / AKM Semiconductor

SENSOR HALL EFFECT ANALOG 3SIP

0

HAL1820UA-A

HAL1820UA-A

TDK Micronas

SENSOR HALL EFFECT ANALOG TO92-3

1362

MLX90290LUA-AAA-540-SP

MLX90290LUA-AAA-540-SP

Melexis

SENSOR HALL EFFECT ANALOG TO92-3

0

MLX90215EVA-AAA-106-BU

MLX90215EVA-AAA-106-BU

Melexis

SENSOR HALL EFFECT ANALOG 4SIP

1452

DRV5055A3QLPGM

DRV5055A3QLPGM

Texas Instruments

SENSOR HALL EFFECT ANALOG

1243

DRV5053RAQDBZTQ1

DRV5053RAQDBZTQ1

Texas Instruments

SENSOR HALL ANALOG SOT23-3

720

AK09970D

AK09970D

Asahi Kasei Microdevices / AKM Semiconductor

IC 3D MAGNETIC SENSOR

0

MLX90333KGO-BCT-000-RE

MLX90333KGO-BCT-000-RE

Melexis

SENSOR HALL ANALOG/PWM 16TSSOP

0

A1319LUA-5-T

A1319LUA-5-T

Allegro MicroSystems

SENSOR HALL EFFECT ANALOG 3SIP

0

MLX90333KGO-BCH-000-SP

MLX90333KGO-BCH-000-SP

Melexis

SENSOR HALL ANALOG/PWM 16TSSOP

0

DRV5053VAQLPG

DRV5053VAQLPG

Texas Instruments

SENSOR HALL EFFECT ANALOG TO92-3

3930

MLX90290LUA-AAA-622-SP

MLX90290LUA-AAA-622-SP

Melexis

SENSOR HALL EFFECT ANALOG TO92-3

56

HAL2420UT-A

HAL2420UT-A

TDK Micronas

SENSOR LINEAR ANALOG TO92-3

2696

MLX90363LGO-ABB-000-SP

MLX90363LGO-ABB-000-SP

Melexis

SENSOR HALL EFFECT SPI 16TSSOP

0

Magnetic Sensors - Linear, Compass (ICs)

1. Overview

Magnetic sensors - linear compass ICs are semiconductor devices that detect magnetic fields and convert them into electrical signals. These integrated circuits provide precise measurement of magnetic field direction and strength in linear axes, enabling 2D/3D orientation detection. Their importance spans multiple industries due to their ability to provide contactless position sensing, navigation capabilities, and magnetic field monitoring in compact form factors.

2. Main Types & Functional Classification

Type Functional Features Application Examples
Hall Effect Sensors Voltage output proportional to magnetic field strength, simple design Current sensing, proximity detection
Anisotropic Magnetoresistance (AMR) Sensors High sensitivity (0.1 accuracy), low power consumption Electronic compasses, navigation systems
Giant Magnetoresistance (GMR) Sensors Ultra-high sensitivity (nanotesla range), wide bandwidth Biomedical devices, industrial position control
Tunneling Magnetoresistance (TMR) Sensors Lowest power consumption, excellent thermal stability IoT devices, automotive safety systems

3. Structure & Composition

Typical construction includes: - Sensing element (Hall plate/AMR film/TMR junction) - Signal conditioning circuitry (amplifiers, ADCs) - Temperature compensation modules - Digital interface (I2C/SPI) Packaged in LGA/QFN formats (2-8mm sizes) with magnetic shielding layers. Advanced versions integrate sensor fusion algorithms for 3-axis measurement.

4. Key Technical Specifications

Parameter Description & Importance
Sensitivity (mV/Gauss) Determines minimum detectable field strength
Resolution ( T/LSB) Affects angle measurement precision (critical for navigation)
Operating Temperature (-40 to +125 C) Defines environmental suitability
Power Consumption ( A/mA) Crucial for battery-powered devices
Interface Type I2C/SPI for digital output, analog for raw signals

5. Application Fields

Main industries include: - Consumer Electronics: Smartphone compasses, AR/VR headsets - Automotive: EPS systems, vehicle detection - Industrial: Robotics, CNC machine tool positioning - Aerospace: Drone stabilization systems - Medical: Surgical tool tracking

6. Leading Manufacturers & Products

Manufacturer Product Series Key Specifications
STMicroelectronics LIS3MDL 50 Gauss range, 0.08 T/LSB, I2C/SPI
Honeywell HMC5883L 80 Hz bandwidth, 2-4 Gauss accuracy
NXP Semiconductors MFX7755 3D sensing, 0.1 heading accuracy
TDK-InvenSense ICM-20948 9-axis MEMS+mag, 0.15 mA operating current

7. Selection Guidelines

Key consideration factors: - Required measurement axis (2D vs 3D) - Environmental conditions (temperature, vibration) - Power budget constraints - Required accuracy vs cost trade-offs - Interface compatibility with host system - Calibration requirements (hard/soft iron compensation)

8. Industry Trends

Current development directions: - Integration with MEMS IMUs for sensor fusion - AI-based self-calibration algorithms - Sub-10 A ultra-low power consumption - Increased radiation hardness for space applications - Development of 4D magnetic field-time sensors

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