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.