Features
• High accuracy pressure sensing (±1.0 kPa), pressure range 40 to 115 kPa
• Operating ambient temperature range -40°C to 125°C
• Best in class low power consumption with dedicated power-down mode for energy saving
• 10-, 12- or 14-bit resolution pressure and temperature values via SPI Interface
• Integrated signal path diagnosis features
• Green, small 4.5 mm x 5.1 mm 8-pin DFN package

Potential applications
• Automotive barometric air pressure sensor (BAP)
• Automotive manifold air flow sensor (MAF)
• Automotive battery monitoring system (BMS)
• Automotive seat comfort system
• Industrial control
• Weather stations
• Altimeters

Description
The KP464 is a high-performance, high-precision miniaturized digital absolute pressure sensor based on a capacitive sensing principle. It is surface micromachined with a monolithic integrated signal conditioning circuit.
The device converts a physical pressure into a 10-, 12- or 14-bit digital value and transmits the information via the SPI interface. In addition, a temperature sensor is integrated on chip. Based on the received SPI command, the 10-, 12- or 14-bit temperature information will also be transmitted via the SPI interface.
The device has implemented a particular Power-Down Mode which allows the user to even reduce the power consumption of the device. A special reliability feature are the integrated diagnostics, which allows testing the sensor cells as well as the signal path.
This diagnosis can be triggered with a SPI command.