Introduction
HAL 283x is a Micronas family of programmable linear Hall-effect sensors with SENT output. The family consists of the four members described in Table 1–

Features
– High-precision linear Hall-effect sensor
– Spinning current offset compensation
– 20 bit digital signal processing
– Output resolution up to 16 bit
– Magnetic measurement range over temperature adjustable from ±24 mT up to ±96 mT
– Sample period programmable from 0.5 ms to 33 ms
– Various sensor parameter are programmable: offset, sensitivity, temperature compensation for sensitivity (2nd order) and offset (1st order), etc.
– Programming and operation of multiple sensors at the same supply line
– Biphase-M interface (programming mode)
– Non-volatile memory with lock function
– SENT clock tick time programmable between 2 µs and 17.75 µs
– Pulse low time programmable between 3 and 6.75 clock ticks
– Sample accurate transmission of magnetic field information
– Transmission of temperature and device information by serial data messages in the status nibble
– Open-drain output with slew rate control (load independent)
– On-board diagnostics (overvoltage, output current, overtemperature, signal path overflow)
– Power-on self-test covering all memories and full signal path from Hall plates to SENT output
– ESD protection at DIO pin
– Reverse voltage and ESD protection at VSUP pin
– High immunity against mechanical stress, ESD, and EMC
– AECQ-100 rev. G qualified

Major Applications
– Steering torque
– Suspension level
– Throttle position
– Pedal position
– Valve position