Digital Barometric Air Pressure Sensor IC Infineon KP256 with BiCMOS Signal Conditioning and Power Down Mode

Product Overview

The KP256 is a miniaturized Digital Barometric Air Pressure Sensor IC utilizing a capacitive principle. Designed with surface micromachining and integrated BiCMOS signal conditioning, it converts pressure into a 10-bit digital value and communicates via SPI. An integrated temperature sensor also provides 10-bit digital temperature readings. The sensor features a diagnostic mode for testing sensor cells and signal paths, a power-down mode for reduced consumption, and is housed in a green SMD package. Its high accuracy, sensitivity, and reliability make it suitable for automotive, industrial, and consumer applications, including weather stations and altimeters.

Product Attributes

• Brand: Infineon Technologies
• Product Type: Digital Absolute Pressure Sensor IC
• Technology: BiCMOS
• Housing: Green 8-pin SMD (PG-DSOF-8-16)
• Certifications: Automotive qualified

Technical Specifications

Category	Parameter	Value	Unit	Notes
General	Product Name	KP256 Digital Absolute Pressure Sensor
	Product Type	Digital Barometric Air Pressure Sensor IC
	Ordering Code	SP001399098
Features	Pressure Sensing Accuracy	1.0	kPa
	Pressure Resolution	10-bit		Real
	Temperature Sensor	Integrated
	Temperature Resolution	10-bit		Real
	Power-Down Mode	Supported		For reduced power consumption
	Self-Diagnosis	Supported		Features
	Housing	8-pin SMD		"Green"
Electrical Characteristics	Supply Voltage (VDD3.3)	3.135 - 3.475	V
	Supply Voltage (VDD5.0)	4.75 - 5.25	V
	Supply Current (VDD)	-	10.0	mA
	Supply Current (Power-down mode)	-	12.0	A
	SPI Clock Frequency	0.1 - 5	MHz
	Start-up Time	-	10	ms	No response on SPI commands during start-up
Operating Range	Operating Temperature	-40 - +125	C
	Ambient Operating Pressure	60 - 165	kPa
	Lifetime	15	years	Anticipation regarding product
Absolute Maximum Ratings	Voltage on any pin (Vmax)	-0.3 - 6.0	V	Limited time: Max. 300 s
	Maximum Input Pressure (pamb_max)	10 - 600	kPa	Limited time: Max. 300 s
Transfer Function (Pressure)	Pressure Transfer Function Characteristics (pIN,1)	60	kPa
	Pressure Transfer Function Characteristics (pIN,2)	165	kPa
	Sensitivity (Sp)	9.74	LSB/kPa
	Offset (offsp)	-584.6	LSB
Transfer Function (Temperature)	Temperature Transfer Function Characteristics (TIN,1)	-40	C	Valid for VDD = 5.0 V
	Temperature Transfer Function Characteristics (TIN,2)	160	C	Valid for VDD = 5.0 V
	Sensitivity (ST)	5.115	LSB/C
	Offset (offsT_5.0)	204.6	LSB	Valid for VDD = 5.0 V
Target Applications	Automotive
	Industrial Control
	Consumer Applications