The linear Hall IC TLE4997A8 has been specifically designed for highly accurate angle and position detection. The sensor provides a ratiometric analog output voltage, which is ideally suited to Analog-to-Digital (A/D) conversion with the supply voltage as a reference. The IC is produced in BiCMOS technology with high voltage capability and also provides reverse polarity protection. Digital signal processing using a 16-bit DSP architecture together with digital temperature and analog stress compensation guarantees excellent stability over the whole temperature range and life time.
Summary of Features:
Integration of two individual programmable Linear Hall sensor IC’s with ratiometric analog output signal.
20-bit Digital Signal Processing (DSP)
Digital temperature compensation
12-bit overall resolution
Operating automotive temperature range -40°C to 125°C
Low drift of output signal over temperature and lifetime
Programmable parameters stored in EEPROM with single-bit error correction:
Magnetic range and sensitivity (gain), polarity of the output slope
Offset
Bandwidth
Clamping levels
Temperature compensation coefficients to accomodate most common magnet materials
Memory lock
Supply voltage 4.5-5.5 V (4-7 V extended range)
Configurable magnetic range : ±50mT, ±100mT or ±200mT
Reverse-polarity and overvoltage protection for all pins
