description
The FXPS7400A4S high-performance, high-precision absolute pressure sensor consists
of a compact capacitive micro-electro-mechanical systems (MEMS) device coupled with
a digital integrated circuit (IC) producing a fully calibrated analog output.
This sensor is ideal for many automotive applications such as manifold air pressure
(MAP), turbo MAP, comfort seating, and other applications requiring operating absolute
pressure ranges up to 400 kPa.
The sensing element 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 ratiometric analog readings of
absolute pressure while operating from either a 3.3 V or 5.0 V power supply.
The sensor operates over a pressure range of 20 kPa to 400 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, restriction of
hazardous substances (RoHS) compliant, high-power quad flat no-lead (HQFN)
package[1] suitable for small printed circuit board (PCB) integration. Its AEC-Q100[2]
compliance, high accuracy, reliable performance, and high media resistivity make it ideal
for use in automotive, industrial, and consumer applications.

Features and benefits
• Absolute pressure range: 20 kPa to 400 kPa
• Operating temperature range: –40 °C to 130 °C
• Analog output for monitoring of the absolute pressure signal
• Pressure transducer and digital signal processor (DSP)
– Internal self-test
• 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

Applications
3.1 Automotive
• Manifold air pressure
– MAP, TurboMAP
• Small engine control
• Liquid propane gas (LPG) or compressed natural gas (CNG) engine management
3.2 Industrial
• Compressed air
• Manufacturing line control
• Gas metering
• Weather stations
3.3 Medical/Consumer
• Blood pressure monitor
• Medicine dispensing systems
• White goods