LX34211QPW-TR

LX34211 is a highly accurate inductive position sensor interface IC with features that simplify the sensor design for a wide range of applications. It has more automatic gain control (AGC) in and a dynamic calibration algorithm that makes it easier to design accurate sensors with larger air gap and more mechanical tolerances with less current. The device includes an integrated oscillator circuit for driving the primary coil of an inductive sensor, along with two independent analog conversion paths for conditioning, converting, and processing of sine and cosine analog signals from the secondary coils of the sensor. The output signal is a DAC analog or PWM signal that represents the position with 12bit measurement range resolution. Each analog signal path includes adjustable AGC gain and digital calibration capability to match the mechanical system variation and maximize accuracy.

• Operating voltage range from 4.4V to 5.6V, maximum rated voltage is 20V
• 12bit position output resolution, 12bit DAC output interface, 16bit PWM output interface
• AEC-Q100 grade 1 certification, ISO26262 ASIL B support
• Digital calibration with non-volatile configuration storage (EEPROM)
• Full range sensor origin adjustment, redundant IC support
• 1.6KHz sensor update speed, power pin (VIN) calibration programming
• Multiple faults detection and protection, reverse power protection, protected watchdog timer
• Protected watchdog timer, built-in oscillator for driving primary coil, two 13-bit ADCs
• Selection of SINC and FIR digital filters, low temperature drift, excellent long term stability
• 14 lead TSSOP package, temperature range from -40°C to +125°C