Linear Hall Sensor Analog 3 Wire TO92UA

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Lead Time 52 weeks
Unit Price:$1.50
Minumum Qty: 1
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The HAL 1820 is a universal magnetic field sensor with a linear analog output based on the Hall effect. The IC can be used for angle and linear measurements if combined with a rotating or moving magnet. The major characteristics like magnetic field range, sensitivity, offset (output voltage at zero magnetic field), and the temperature coefficients are programmable in a non-volatile memory.
The HAL 1820 is programmable by modulating the supply voltage of the sensor. No additional programming pin is needed. The easy programmability allows a 2-point calibration by adjusting the output signal directly to the input signal (like mechanical angle, distance, or current). Individual adjustment of each sensor during the customer’s manufacturing process is possible. With this calibration procedure, the tolerances of the sensor, the magnet, and the mechanical positioning can be compensated in the final assembly. This offers a low-cost alternative for all applications that presently need mechanical adjustment or laser trimming for calibrating the system.
The sensor is designed to be used in automotive or industrial applications. It operates in a wide junction temperature range from –40 °C up to 170 °C. The HAL 1820 is available in the very small leaded package TO92UA and in the small SMD package SOT89B.


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Ratiometric linear output proportional to the mag-netic field
Various programmable magnetic characteristics with non-volatile memory
Digital signal processing
Continuos measurement ranges from  20 mT to 160 mT
Customer readable Micronas production information (like lot number, wafer number, etc.)
Temperature characteristics programmable for matching all common magnetic materials
Programming via supply voltage modulation
Lock function and built-in redundancy for EEPROM memory
Temperature and stress-stable quiescent output voltage
On-chip temperature compensation
Active offset compensation
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 2.25kHz
Magnetic characteristics extremely robust against mechanical stress
Short-circuit protected push-pull output
EMC and ESD optimized design


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