Infineon KP120T

KP120 is a miniaturized absolute pressure sensor IC based on capacitive principles. It employs surface micromachining technology and achieves monolithically integrated signal conditioning circuitry using advanced 0.8μm BiCMOS technology. As a high-precision IC targeting cost-sensitive solutions, the device is housed in a low-cost SMD package. Its high accuracy and high sensitivity make it suitable for automotive applications as well as consumer products. In the automotive domain, intake manifold absolute pressure (MAP) and barometric absolute pressure (BAP) are critical parameters for calculating the air-fuel ratio delivered to the engine and controlling ignition advance angle to optimize engine efficiency. The IC consists of a surface micromachined pressure sensor, a Σ-Δ A/D converter, a digital filter, and an SPI interface. During normal operation, the applied pressure must be within the range of 10kPa to 150kPa, and the KP120 and KP120 Exxxx provide an output voltage of 0.25V to 4.85V.

• Ratiometric analog output
• Calibrated transfer function
• High accuracy over wide temperature range (max error 1.5kPa over 0...85°C)
• CMOS-compatible surface micromachining technology
• SMD package
• Custom transfer function available (KP120 Exxxx)
• P-DSOF-8-5 package