●Description:
●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
● Output short-circuit protection
● On-board diagnostics (wire breakage detection, EEPROM error, overvoltage)
● Digital readout of internal temperature and magnetic field values in calibration mode
● Programming and operation of multiple sensors with common power supply
● Two-point calibration of magnetic transfer function
