NXP FXPS7115D4

FXPS7115D4 - high-performance, high-precision Barometric Absolute Pressure sensor

The FXPS7115D4 high-performance, high-precision Barometric Absolute Pressure (BAP) sensor consists of a compact capacitive MEMS device coupled with a digital IC producing a fully calibrated digital output.

The sensor is based on NXP’s high precision capacitive pressure cell technology. The architecture benefits from redundant pressure transducers as an expanded quality measure. It delivers highly accurate pressure and temperature readings through either a SPI or I2C interface and is capable of operating off of a 3.3 V or 5 V supply. Furthermore, the sensor employs an on-demand digital self-test for the digital IC and the MEMS transducers.

The sensor operates over a pressure range of 40 kPa to 115 kPa and over a wide temperature range of −40 ºC to 130 ºC.

The sensor comes in an industry-leading 4 mm x 4 mm x 1.98 mm, RoHS complaint, QFN package suitable for small PCB integration. Its AEC-Q100 compliance, high accuracy, reliable performance and high media resistivity make it ideal for use in automotive, industrial, and consumer applications.
 

Features & benefits Absolute pressure range : 40 to 115 kPa Operating temperature range : –40 °C to 130 °C Pressure transducer and DSP Redundant pressure transducers Digital self-test I2C compatible serial interface Slave mode operation Standard mode, fast mode, and fast-mode plus support 32-bit SPI compatible serial interface Sensor data transmission commands 12-bit data for absolute pressure 8-bit data for temperature 2-bit basic status and 2-bit detailed status fields 3, 4, or 8-bit configurable CRC Capacitance to voltage converter with anti-aliasing filter Sigma delta ADC plus sinc filter 800 Hz or 1000 Hz low-pass filter for absolute pressure Pb-free, 16-pin QFN, 4 mm x 4 mm x 1.98 mm package

Applications Automotive Engine Management Digital BAP Vacuum measurement Comfort seating Small engine control Liquid propane gas (LPG) fuel management Industrial Compressed air Manufacturing line control Gas metering Weather stations Medical/Consumer Blood pressure monitor Medicine dispensing systems White goods

 

Block diagram

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