描述 Description

The FXPS7xx0D4 high-performance, high-precision barometric absolute pressure (BAP) sensor consists of a compact capacitive micro-electro-mechanical systems (MEMS) device coupled with a digital integrated circuit (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. This sensor delivers highly accurate pressure and temperature readings through either a serial peripheral interface (SPI) or an inter-integrated circuit (I2C) interface.
The FXPS7xx0D4 uses either a 3.3 V or 5.0 V power supply. Furthermore, the sensor employs an on-demand digital self-test for the digital IC and the MEMS transducers.

特性 Features

? Absolute pressure range: 20 to 550 kPa
? Operating temperature range: –40 °C to 130 °C
? Pressure transducer and digital signal processor (DSP)
? 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
? Lead-free, 16-pin HQFN, 4 mm x 4 mm x 1.98 mm package

應用 Application

Automotive
?Battery Management System

? Comfort seating

? Engine management digital BAP

? Liquid propane gas (LPG) or compressed natural gas (CNG) engine management
?Motorcycle Engine Control Unit (ECU) and Small Engine Control
Consumer Electronics

? Medicine dispensing systems

? White goods
Industrial
?Blood Pressure Monitors

? Compressed air

? Gas metering

? Manufacturing line control

? Weather stations