KP234XTMA1: Infineon's XENSIV™ KP234 Pressure Sensor for High-Accuracy Barometric Sensing

In the rapidly evolving world of embedded electronics and IoT, the demand for highly accurate environmental sensing is greater than ever. Addressing this need, Infineon Technologies introduces the XENSIV™ KP234 pressure sensor, a state-of-the-art solution designed for premium barometric sensing applications. The KP234XTMA1 variant stands out with its exceptional performance, leveraging a capacitive MEMS technology core to deliver unparalleled precision and reliability.

At the heart of the KP234 is a robust capacitive sensing principle, which is inherently less susceptible to temperature drift and noise compared to traditional piezoresistive methods. This allows the sensor to achieve an outstanding absolute accuracy of ±0.5 hPa and an incredibly low noise level of just 0.09 Pa RMS. Such high precision makes it ideal for applications where detecting minute pressure changes is critical, such as in advanced weather stations, indoor navigation for floor-level detection, and altitude tracking in drones and wearable devices.

A key feature of the KP234 is its integrated signal conditioning. The sensor comes with a fully calibrated and compensated digital I²C or SPI interface, providing immediate, ready-to-use digital pressure data. This drastically simplifies the design-in process for engineers, eliminating the need for complex calibration procedures. Furthermore, its ultra-low power consumption of just 3 μA in low-power mode makes it a perfect fit for battery-powered applications that require continuous sensing.

The KP234XTMA1 is built for resilience. It is qualified for industrial temperature ranges (-40 °C to +85 °C) and is housed in a compact, 8-pin LGA package, ensuring durability and reliability even in harsh environmental conditions. Its high resolution enables the detection of altitude changes as small as 5 centimeters, unlocking new possibilities for context-aware applications.

ICGOODFIND: The Infineon XENSIV™ KP234 (KP234XTMA1) is a top-tier barometric pressure sensor that sets a new benchmark for accuracy, power efficiency, and integration, making it an exceptional choice for the next generation of smart, connected devices.

Keywords: Barometric Pressure Sensor, High-Accuracy, MEMS Technology, Ultra-Low Power, Digital SPI/I²C Interface