Direct Angle Sensor PWM SOIC8

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The HAL 36xy families represents a new level of performance for Hall-effect sensors enabling a significant simplification in the design of magnetic systems. The sensors are based on Micronas’ innovative 3D HAL technology, which combines standard lateral with vertical Hall plates. The HAL 36xy family is targeted for rotational movement detection up to 360°.
The devices of this family measure the X and Y component of a magnetic field in the sensor plane. Monitoring the relative strength of both components leads to a stable output even if the distance between magnet and sensor varies. The result is angular rotation measurement from 0° to 360° with very high accuracy over a wide temperature range. The first member of this family is the HAL 3625.
The sensors are housed in a small SOIC8 SMD package, producing an analog, ratiometric output. They include an integrated wire-break detection feature that works in conjunction with a pull-up or pull-down resistor to detect fault conditions. Internal digital signal processing algorithms in conjunction with integrated non-volatile memory enable customization and robust calibration for application-specific impairments. Easy to use LabVIEWTM-based software and high-quality application notes accelerate development, even for novice magnet system designers. The result is a quickly developed, customized sensor system with extremely low temperature drift and insensitivity to air gap variations.
The HAL 3625 sensor is produced in a proven submicron CMOS technology.The HAL 3625 features temperature-compensated Hall plates with choppered offset compensation, two A/D converters for the magnetic field information, a temperature sensor with A/D converter, digital signal processing, a push-pull output, an EEPROM memory with redundancy and lock function for the calibration data and the data register information, a serial interface for programming the EEPROM, and protection devices on all pins.
The HAL 3625 is programmable by modulating the output voltage. No additional programming pin is needed.
The internal digital signal processing is of great benefit because analog offsets, temperature shifts, and mechanical stress do not degrade the sensor accuracy.
The HAL 36xy uses licenses of Fraunhofer Institute for Integrated Circuits IIS.
Contactless potentiometers
Rotary position measurement


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Angular accuracy of 1.0 for 360 angle range
Angle measurement is extremely is robust against temperature and stress influence
Ratiometric linear analog output is proportional to the measured angle
Integral non-linearity error of output signal 0.1% of VDD Ratiometric error of output signal 0.2%
Output response time 1 ms (slow mode)
Low output noise of 0.2 rms
Wire-break detection with pull-up or pull-down resistor
Over- and undervoltage detection
Programmable characteristics in a non-volatile memory with redundancy and lock function
Programming of the sensor via its output with TTL level
Programmable output slope and offset
X- and Y-channel gain and offset of signal path programmable
Phase shift between X- and Y-channel programmable
Programmable output clamping voltages for error band definition
Programmable magnet lost detection
32 bit identification number for customer
Operates from 40 C up to 170 C junction temperature
Operates from 4.5 V up to 5.5 V supply voltage
Short-circuit protected push-pull output
Over- and reverse-voltage protection at VDD pin
On-board diagnostic functions


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Micronas HAL36 Product Brief

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Direct Angle Sensor PWM SOIC8
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Direct Angle Sensor PWM SOIC8