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The LX3302A is a highly integrated programmable data conversion IC designed for interfacing to and managing of inductive sensors. 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 two analog signals from the secondary coils of the sensor. Each path includes an EMI filter, demodulator, anti-alias filter, programmable amplifier, and a 13-bit sigma-delta analog-to-digital converter.
Each analog signal path includes digital calibration capability which allows the complete analog path (including the external sensors) to be calibrated during the system manufacturing process. The calibration information is written to internal EEPROM resulting in improved production yields, and in-line system upgrades.
The LX3302A integrates a 32-bit RISC processor which provides programmable digital filtering and signal processing functions.
System interfaces include a SENT or PSI5 serial port, programmable PWM output and a 12-bit digital-to-analog converter analog buffed output.
The LX3302A is offered in a TSSOP14 package. The device is specified over a temperature range of -40°C to +150°C making it suitable for a wide range of commercial, industrial, medical, and/or automotive sensor applications.
Inductive Sensor System Utilizing LX3302A Sensor Interface IC