KP120T

KP120T Datasheet

Surface Mount Capacitive Silicon Absolute Pressure Sensor KP120, KP120 Exxxx

Part	Datasheet
KP120T	KP120T (pdf)

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Data Sheet,V1.1, Oct. 2003 Surface Mount Capacitive Silicon Absolute Pressure Sensor KP120, KP120 Exxxx Sensors Never stop thinking. Edition 2003-10-17 Published by Infineon Technologies AG, St.-Martin-Strasse 53, 81669 München, Germany Infineon Technologies AG All Rights Reserved. Attention please! The information herein is given to describe certain components and shall not be considered as a guarantee of characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. Surface Mount Capacitive Silicon Absolute Pressure Sensor KP120, KP120 Exxxx • Ratiometric analog output • Calibrated transfer function • High accuracy over a large temperature range kPa max. error over 0 85 °C • CMOS compatible surface micromachining • SMD housing • Customized transfer functions available KP120 Exxxx P-DSOF-8-5 Type KP120 Ordering Code Pressure Range Q62705-K352 40 kPa - 115 kPa Overall Accuracy Package P-DSOF-8-5 Product Description The KP120 is a miniaturized absolute pressure sensor IC based on the capacitive principle. It is surface micromachined with a monolithic integrated signal conditioning circuit realized in the state-of-the-art µm BiCMOS technology. As the KP120 is a high precision IC for cost critical solutions the chip is packaged in a low cost SMD housing. High accuracy and high sensitivity enable the dedication in automotive applications as well as consumer products. In the automotive field the manifold air pressure MAP and barometric air pressure BAP are important parameters to compute the air-fuel ratio provided to the engine and for controlling spark advance to optimize engine efficiency. The IC consists of a surface micromachined pressure sensor, a sigma-delta A/Dconverter, a digital filter and the SPI-interface. In normal operation, the applied pressure has to be in the range between 10 kPa and 150 kPa and the KP120, KP120 Exxxx can deliver output voltages between V and V. Data Sheet V1.1 2003-10-17 Pin Configuration top view KP120, KP120 Exxx Figure 1 Pin Definitions and Functions Pin No. 1 2 3 4 5 6 7 8 Symbol N.C. SERIAL_CLK/ PROG_VOLT SERIAL_IN SERIAL_OUT VOUT N.C. Function Not to be connected Used for calibration in manufacturing Used for calibration in manufacturing Used for calibration in manufacturing 5 V Supply voltage 0 V Circuit ground potential Output Not to be connected Data Sheet V1.1, 2003-10-17 KP120, KP120 Exxx Figure 2 Block Diagram of the KP120 Data Sheet V1.1, 2003-10-17 KP120, KP120 Exxx Transfer Function The device is fully calibrated on delivery. The sensor has a linear transfer function between the applied pressure and the output signal: VOUT = VDD x a x p + b The output is ratiometric. The gain a and the offset b are calibrated to realize the demanded transfer function. Transfer Function KP120 With the parameters a and b the following calibration is adjusted: pN, MIN = 40 kPa VOUT = V and pN, MAX = 115 VOUT = = 5 V The nominal transfer function for KP120 is given by: VOUT = V x k----Pp----a-- Figure 3 Nominal Transfer Function for the KP120 Version Data Sheet V1.1, 2003-10-17 KP120, KP120 Exxx Absolute Maximum Ratings Parameter

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Data Sheet,V1.1, Oct. 2003

Surface Mount Capacitive Silicon Absolute Pressure Sensor KP120, KP120 Exxxx

Sensors

Never stop thinking.

Edition 2003-10-17

Published by Infineon Technologies AG, St.-Martin-Strasse 53, 81669 München, Germany

Infineon Technologies AG

All Rights Reserved.

Attention please!

The information herein is given to describe certain components and shall not be considered as a guarantee of characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein.

Information

For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office

Warnings

Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.

Surface Mount Capacitive Silicon Absolute Pressure Sensor KP120, KP120 Exxxx
• Ratiometric analog output
• Calibrated transfer function
• High accuracy over a large temperature range
kPa max. error over 0 85 °C
• CMOS compatible surface micromachining
• SMD housing
• Customized transfer functions available

KP120 Exxxx

P-DSOF-8-5

Type KP120
Ordering Code

Pressure Range

Q62705-K352 40 kPa - 115 kPa

Overall Accuracy

Package P-DSOF-8-5

Product Description

The KP120 is a miniaturized absolute pressure sensor IC based on the capacitive principle. It is surface micromachined with a monolithic integrated signal conditioning circuit realized in the state-of-the-art µm BiCMOS technology. As the KP120 is a high precision IC for cost critical solutions the chip is packaged in a low cost SMD housing. High accuracy and high sensitivity enable the dedication in automotive applications as well as consumer products.

In the automotive field the manifold air pressure MAP and barometric air pressure BAP are important parameters to compute the air-fuel ratio provided to the engine and for controlling spark advance to optimize engine efficiency.

The IC consists of a surface micromachined pressure sensor, a sigma-delta A/Dconverter, a digital filter and the SPI-interface. In normal operation, the applied pressure has to be in the range between 10 kPa and 150 kPa and the KP120, KP120 Exxxx can deliver output voltages between V and V.

Data Sheet

V1.1 2003-10-17

Pin Configuration top view

KP120, KP120 Exxx

Figure 1

Pin Definitions and Functions

Pin No. 1 2
3 4 5 6 7 8

Symbol N.C. SERIAL_CLK/ PROG_VOLT SERIAL_IN SERIAL_OUT

VOUT

N.C.

Function Not to be connected Used for calibration in manufacturing

Used for calibration in manufacturing Used for calibration in manufacturing 5 V Supply voltage 0 V Circuit ground potential Output Not to be connected

Data Sheet

V1.1, 2003-10-17

KP120, KP120 Exxx

Figure 2 Block Diagram of the KP120

Data Sheet

V1.1, 2003-10-17

KP120, KP120 Exxx

Transfer Function The device is fully calibrated on delivery. The sensor has a linear transfer function between the applied pressure and the output signal:

VOUT = VDD x a x p + b

The output is ratiometric. The gain a and the offset b are calibrated to realize the demanded transfer function.

Transfer Function KP120 With the parameters a and b the following calibration is adjusted:
pN, MIN = 40 kPa VOUT = V and pN, MAX = 115 VOUT = = 5 V

The nominal transfer function for KP120 is given by:

VOUT = V x k----Pp----a--

Figure 3 Nominal Transfer Function for the KP120 Version

Data Sheet

V1.1, 2003-10-17

KP120, KP120 Exxx

Absolute Maximum Ratings Parameter

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived KP120T Datasheet file may be downloaded here without warranties.

Datasheet ID: KP120T 638379