10 Best linear Hall sensors

Which hall sensors I need to count motor rounds or simply check a mechanical position ?

All this sensors are compatible with ARDUINO developing platforms.

Here a list of the best 10 linear Hall sensors

Position Hall sensors Applications

  • Motion control
  • Linear position encoders
  • Incremental off-axis rotary encoders
  • Brushless motors
  • contactless sensing
  • measure the vertical component of a magnetic field
  • Seat position and occupant detection
  • magnetic fingerprint detection
  • Industrial Automation and Robotics
  • Home Appliances
  • Gamepads, Pedals, Keyboards, Triggers
  • Height Leveling, Tilt and Weight Measurement
  • Fluid Flow Rate Measurement
  • Medical Device
  • Absolute Angle Encoding
  • High Current Sensing

How an Hall sensor works under magnetic effect

Magnetic hall sensor - how they works
Magnetic hall sensor – how they works


Texas Instruments DRV5053

Analog bipolar linear hall effect sensor

Linear Output Hall Sensor
• Superior Temperature Stability: Sensitivity ±10% Over Temperature
• High Sensitivity Options (you have to choose your desired full scale):
– –11 mV/mT (OA
)
– –23 mV/mT (PA)
– –45 mV/mT (RA)
– –90 mV/mT (VA)
– +23 mV/mT (CA)
– +45 mV/mT (EA)
• Supports a Wide Voltage Range: 2.5 to 38 V – No External Regulator Required
• Wide Operating Temperature Range: T
A = –40 to 125°C (Q, see Figure 17)
• Amplified Output Stage:  2.3-mA Sink, 300 µA Source
Output Voltage: 0.2 ~ 1.8 V: B = 0 mT, OUT = 1 V
• Fast Power-On: 35 µs

TI DRV5053 Pin function
TI DRV5053 Pin function

The DRV5053 output stage is capable of up to 300-μA of current source or 2.3-mA sink. For proper operation, ensure that equivalent output load ROUT > 10 kΩ.
The capacitive load directly present on the OUT pin should be less than 10 nF to ensure the internal operational amplifier is stable. If an external RC filter is added to reduce noise, it is acceptable to use a resistor ≥ 200 Ω with a capacitor ≤0.1 µF.


Ti DRV5055

Ratiometric linear hall effect sensor

PIN_TO_PIN_COMPATIBLE_WITH_DRV5053

Ratiometric Linear Hall Effect Magnetic Sensor
• Operates From 3.3-V and 5-V Power Supplies
• Analog Output With V
CC / 2 Quiescent Offset
• Magnetic Sensitivity Options (At V
CC = 5 V):
– A1: 100 mV/mT, ±21-mT Range
– A2: 50 mV/mT, ±42-mT Range
– A3: 25 mV/mT, ±85-mT Range
– A4: 12.5 mV/mT, ±169-mT Range
Fast 20-kHz Sensing Bandwidth
• Low-Noise Output With ±1-mA Drive
Compensation For Magnet Temperature Drift

Ti DRV5055 - how it works
Ti DRV5055 – how it works

Ti DRV5057

Ratiometric PWM output hall effect sensor

datasheet drv5057 TI – Ratiometric PWM Hall sensor

PIN_TO_PIN_COMPATIBLE_WITH_DRV5053

PWM-Output Linear Hall Effect Magnetic Sensor
• Operates From 3.3-V and 5-V Power Supplies
2-kHz Clock Output With 50% Quiescent Duty
Cycle
• Magnetic Sensitivity Options (At V
CC = 5 V):
– A1: 2%D/mT, ±21-mT Range
– A2: 1%D/mT, ±42-mT Range
– A3: 0.5%D/mT, ±84-mT Range
– A4: 0.25%D/mT, ±168-mT Range
• Open-Drain Output With 20-mA Sink Capability
• Compensation for Magnet Temperature Drift

Ti DRV5057 - how it works
Ti DRV5057 – how it works


HONEYWELL SS39ET

Low cost and small solution for linear analog magnetic sensor

Miniature and subminiature construction: Designed for compact designs with tight space requirements
• Energy efficient: Low current consumption of 6 mA at 5 Vdc
• Easy PC board interface: Single current sourcing output for common electronic circuits
• Circuit design flexibility: Voltage range of 2.7 Vdc to 6.5 Vdc
• Low noise output: Virtually eliminates the need for filtering
• Stable output: Thin film resistors improve accuracy
• Wide range of environments: Temperature range of -40 °C to 100 °C [-40 °F to 212 °F]
• Application flexibility: Responds to either positive or negative Gauss

HoneyWell SS39ET - Output voltage range
HoneyWell SS39ET – Output voltage range
HoneyWell SS39ET Pin configuration
HoneyWell SS39ET Pin configuration


Melexis MLX90290

Functional Block Diagram MLX90290 Melexis hall sensor
Functional Block Diagram MLX90290 Melexis hall sensor

The device integrates a voltage regulator, Hall sensor with advanced offset cancellation system and an analog output driver, all in a single package.
The Output voltage is proportional to the applied magnetic field and to the chip supply voltage (ratiometric).

Multiple sensitivity codes & magnet compensation options exists.
The Output Offset Level (Quiescent Level) at zero magnetic field equals to 50% of the chip supply voltage.

Pin description case MLX90290 Melexis hall sensor
Pin description case MLX90290 Melexis hall sensor
Tipical application Diagram MLX90290 Melexis hall sensor
Tipical application Diagram MLX90290 Melexis hall sensor


DIODES AH49E

Functional Block Diagram DIODES AH49E hall sensor
Functional Block Diagram DIODES AH49E hall sensor
Pin description DIODES AH49E
Pin description DIODES AH49E


Melexis MLX90393 micropower programmable linear

Melexis ML90393 functional Block diagram
Melexis ML90393 functional Block diagram

The MLX90393 is designed for micropower applications, with programmable duty cycles in the range of 0.1% to 100%. Single measurement mode, burst mode and wake-up on change mode.

The MLX90393 magnetic field sensor can be reprogrammed to different modes and with different settings at run-time.

The sensor offers a 16-bit output proportional to the magnetic flux density sensed along the XYZ axes using the Melexis proprietary Triaxis® technology and also offers a temperature output signal.

These digital values are available via I2C and SPI, where the MLX90393 is a slave on the bus.

For certain encoder applications speed is crucial, which is possible by increasing the duty cycle to 100% (i.e. maximum current consumption) and minimizing the conversion time (i.e. higher data rate at the expense of more noise on the signal). Other battery powered applications that only require occasional sensor readout can opt for a different trade-off: reduced duty cycle (lower current consumption) and an average conversion time for reduced noise.


Allegro A1308

Allegro A1308 Functional Block Diagram
Allegro A1308 Functional Block Diagram

New applications for linear output Hall-effect sensors, such as displacement and angular position, require higher accuracy and smaller package sizes. The Allegro A1308 and A1309 linear Hall-effect sensor ICs have been designed specifically to meet both requirements. These temperature-stable devices are available in both surface-mount and through-hole packages.

The accuracy of each device is enhanced via end-of-line optimization. Each device features nonvolatile memory to optimize device sensitivity and the quiescent voltage output (QVO: output in the absence of a magnetic field) for a given application or circuit. This A1308 and A1309 optimized performance is sustained across the full operating temperature range by programming the temperature coefficient for both sensitivity and QVO at Allegro end-of-line test.

These ratiometric Hall-effect sensor ICs provide a voltage output that is proportional to the applied magnetic field. The quiescent voltage output is adjusted around 50% of the supply voltage.

The features of these linear devices make them ideal for use in automotive and industrial applications requiring high accuracy, and they operate across an extended temperature range, –40°C to 150°C.


TDK Micronas HAL 242x family of linear hall sensors

Micronas HAL 242x block diagram - linear hall sensor
Micronas HAL 242x block diagram – linear hall sensor

The new HAL 24xy family offers extended distance measurement, improved robustness and state-of-the-art diagnostic functions for applications under stringent conditions.
All new family members will leverage upon TDK-Micronas long success in Linear Hall-effect sensors, full in-house manufacturing and automotive proven 0 ppm track record. It uses TDK-Micronas’s latest technology node, a new digital architecture as well as further enhanced Hall plates. The sensor provides an improved output linearization by incorporating a flexible compensation function with up to 16 programmable setpoints. In addition, angles up to 180° can be measured even with a simple magnet configuration.

  • High-precision linear Hall-effect sensor with ratiometric 12-bit analog output (HAL/HAR 242x)
  • 0.25 kHz to 2 kHz (up to 12 bit) PWM output (HAL/HAR 2455)
  • 16 setpoints for various output signal characteristics
  • High immunity against ESD (8 kV) and EMC
  • Multiple customer-programmable magnetic characteristics in a non-volatile memory with redundancy and lock function
  • Programmable temperature compensation for sensitivity and offset
  • Magnetic field measurements in the range up to 200 mT
  • Low output voltage drifts over temperature
  • Open-circuit (ground and supply line break detection), overvoltage and undervoltage detection
  • Programmable output clamping function
  • Digital readout of temperature and magnetic field information in calibration mode
  • Operates from −40 °C up to 170 °C junction temperature
  • Operates from 4.5 V up to 5.5 V supply voltage in specification
  • Operates with static magnetic fields and dynamic magnetic fields up to 2 kHz
  • Overvoltage and reverse-voltage protection at all pins
  • Short-circuit protected push-pull output


Infineon TLE4998

High performance programmable Linear Hall sensor

Infineon TLE4998 programmable hall sensor - Block diagram
Infineon TLE4998 programmable hall sensor – Block diagram
  • Integration of two individual programmable Linear Hall sensor IC’s with PWM open-drain output signal
  • 20-bit Digital Signal Processing
  • Digital temperature and stress compensation
  • 12-bit overall resolution
  • Operating automotive temperature range -40°C to 125°C
  • Minimal drift of output signal over temperature and lifetime
  • Programmable parameters stored in EEPROM with single bit error correction: – PWM output frequency – Magnetic range, sensitivity (gain), offset, and polarity of the output slope – Bandwidth – Clamping levels – Customer temperature compensation coefficients for all common magnets
  • Re-programmable until memory lock
  • Supply voltage 4.5 – 5.5 V (4.1 – 16 V extended range)
  • Configurable magnetic range: ±50 mT, ±100 mT, or ±200 mT
  • Reverse-polarity and overvoltage protection for all pins • Output short-circuit protection • On-board diagnostics (overvoltage, EEPROM error)

 


iC-Haus iC-MHL200

MHL200 hall sensor - working principle
MHL200 hall sensor – working principle
  • Realtime system for linear speed up to 8 m/s at full resolution
  • Absolute position within the magnetic period of 4 mm
  • 12-bit interpolation w. 4096 increments, resolution better 1 μm
  • Automatic signal offset compensation
  • Automatic amplitude control for optimum operating point
  • Programmable features: interpolation factor, hysteresis, minimum phase distance, zero position and code direction
  • Electronic index generation with multi-purpose enable input
  • RS422-compatible A/B/Z outputs for encoder quadrature signals with up to 8MHz edge rate
  • UVW commutation signals for EC motor applications
  • BiSS/SSI interface for high-speed serial data output (BiSS/SSI) and configuration (BiSS)
  • Zener-Zap ROM for non-volatile setup and OEM data
  • Signal monitoring: loss of signal, excessive frequency
  • Single 5 V supply
  • Extended temperature range of -40 to +125 °C


Asahi Kasei EQ-431L Factory Programmed Linear Hall Ics

EQ-431L is composed of an InAs Quantum Well Hall Element and a signal processing IC chip in a package

Analog output which proportional to the magnetic field strength and pole.
 ■ Magnetic sensitivity 65mV/mT(typ.)
 ■ Supply voltage from 3.0V to 5.5V at single power supply
 ■ Operating temperature range -40℃~100℃
 ■ Ratio-metric analog output
 ■ 3pin surface mount plastic package
 ■ Quick response 4 μs

Rated output current : 1 mA;

Rated consumption current : 12 mA;


Ahest Linear Hall Sensor AH3507

ahest AH3507 - linear hall sensor
ahest AH3507 – linear hall sensor

Rated working voltage 4.5 V ~ 6 V;

Operating temperature range: -40℃ ~ 125℃;

Rail to Rail voltage output, Rated output current : 6 mA;


AMS AS5170 magnetic angular position hall sensor

Magnetic angular position sensor
Magnetic angular position sensor


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Link to datasheets, videos and useful info

Allegro Microsystems linear position sensors main page

Infineon linear hall IC sensors list

TI linear hall sensors catalog

Diodes linear hall effect sensors list

Asahi kasei microdevices hall effect products

TDK Micronas

Micronas hall sensor and Arduino VIDEO

IC Haus

Melexis

Melexis hall sensor used as rotary encoder VIDEO

Honeywell Hall-effect linear sensor IC

Ahest

HoneyWell hall sensors book

Credits to spectecsensors

 

Autore dell'articolo: Lucio Sciamanna