CO2 Sensor

Product Attribute:

Applicationt: 

-

Production Description:

Product Summary
    The STC3x sensor family is Sensirions series of Gas Concentration sensors designed for high-volume applications. The STC3x utilizes a revolutionized thermal conductivity measurement principle, which results in superior repeatability and long-term stability.
    This make the STC31 a perfect choice for applications where reliability is key.
    The sensor features a digital I²C interface, which makes it easy to connect directly to a microprocessor.
    The outstanding performance of these sensors is based on Sensirions patented CMOSens® sensor technology, which combines the sensor element, signal processing and digital calibration on a small CMOS chip. The well-proven CMOS technology is perfectly suited for high-quality mass production and is the ideal choice for demanding and cost-sensitive OEM applications.
 
Benefits of Sensirions CMOSens® Technology

•  High reliability and long-term stability
•  Best signal-to-noise ratio
•  Industry-proven technology with a track record of more than 15 years
•  Designed for mass production
•  High process capability

 
Specifications
1.Electrical Specifications

Parameter	Symbol	Condition	Min.	Typ.	Max.	Units	Comments
Supply Voltage	VDD		2.7	3.3	5.5	V	Sensor is calibrated at 3.3V
Power-up/down level	VPOR		2.3	2.5	2.7	V
Supply current	IDD	Measuring		3	5	mA
		Idle state		50		uA
		Sleep mode			1	uA

2.Timings

Parameter	Symbol	Condition	Min.	Typ.	Max.	Units	Comments
Power-up time	tPU				14	ms	Time to sensor ready
Soft reset time	tSR				12	ms	Time between soft reset command or exit sleep mode and sensor ready
I2C SCL frequency	fI2C			400	1000	kHz
Measurement time concentration					66	ms	Measurement result is returned together with temperature value

3.Mechanical Specifications

Parameter	Symbol	Condition	Min.	Typ.	Max.	Units	Comments
Weight	W				0.025	g

4.Materials

Parameter
REACH, RoHS	REACH and RoHS compliant

5.Absolute Minimum and Maximum Ratings¹

Parameter	Rating	Units
Supply Voltage VDD	-0.3 to 5.5	V
Max Voltage on pins (SDA, SCL)	-0.3 to VDD+0.3	V
Input current on any pin	±70	mA
Operating temperature range	-20 to +85
Storage temperature range	-20 to +85
Operating absolute pressure range	600 to 1200	mbar
Max. humidity for long term exposure	40 dew point
ESD HBM (human body model)	2	kV
Media Compatibility	Non corrosive gases

1 For other ranges contact Sensirion