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SMT172 Ultra-low Power, High-precision Temperature Sensor

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Place of Origin: Netherland

Brand name: Smartec

Payment Terms: Others,T/T

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Keyword: temperature sensor

Category: Sensors

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Shenzhen ISweek Technology LTD

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Country / Year Established: China / 2014

Business type: Trading Company

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PRODUCT DESCRIPTION COMPANY INFORMATION Related Products

Product name	SMT172 Ultra-low Power, High-precision Temperature Sensor	Certification	-
Category	Sensors	Ingredients	-
Keyword	temperature sensor	Unit Size	-
Brand name	Smartec	Unit Weigh	-
origin	Netherland	Stock	-
Supply type	-	HS code	-

Product Information

SMT172 Temperature Sensor Introduction
The SMT172 is an ultra-low power, high-precision temperature sensor that combines the ease of use with the world’s leading performance over a wide temperature range. Using the most recent advances in the silicon temperature sensing technology, the SMT172 has applied some really sophisticated IC design techniques as well as high-precision calibration methods, to achieve an absolute inaccuracy of less than ± 0.1°C in the range of -20°C to 60°C

The SMT172 operates with a supply voltage from 2.7V to 5.5V. The typical active current of only 60µA, the high speed conversion over 4000 outputs per second (at room temperature) and an extremely low noise makes this sensor the most energy efficient temperature sensor in the world (0.36µJ/measurement).

The sensors are available in a number of encapsulations: TO18, TO92, TO220, SOIC-8L, SOT223, HEC and in a 7 mm ss. probe with 5 mtr cable. The SMT172 can be supplied as a naked die as well.

The SMT172 has an overall accuracy of 0.1 °C in the range from -20 °C to +60 °C and an accuracy of 0.4 °C from -45 to +130 °C. This makes the sensor especially useful in all applications where human conditions (climate control, food processing etc.) are to be controlled.

SMT172 Temperature Sensor Features and Highlights
• World’s most energy efficient temperature sensor
0.36µJ/measurement (TA =25°C, 3.3V)
• Wide temperature range: -45°C to 130°C
• Wide supply voltage range: 2.7V to 5.5V
• High accuracy: ±0.25°C (-10°C to 100°C TO18)
±0.1°C (-20°C to 60°C, TO18)
• Extreme low noise: 0.0002°C
• Ultra-low current (60µA active or 220nA average)
• Excellent long term stability
• Direct interface with Microcontroller (MCU)
• Wide range of package options

SMT172 Temperature Sensor Application
• Ultra-low power applications: wearable electronics, wireless sensor networks
• Medical applications: body temperature monitoring
• Instrumentation: (Bio)chemical analysis, precision equipment
• Environmental monitoring (indoor/outdoor)
• Industrial applications: process monitoring/controlling

SMT172 Temperature Sensor Specifications
TA = -45°C to 130°C, Vcc=2.7V to 5.5V, unless otherwise noted

Parameter	Min	Typ	Max	Unit	Conditions
Supply Voltage	2.7		5.5	V
Active current		50		µA	TA = -45°C, Vcc = 2.7V, no load at the output pin
		60		µA	TA = 25°C, Vcc = 3.3V, no load at the output pin
		70		µA	TA = 25°C, Vcc = 3.3V, no load at the output pin
Average current		220		nA	TA = 25°C, Vcc = 3.3V, one measurement per second
Power down current			0	µA	When controlling with Vcc pin
Accuracy TO18			0.25	°C	-10 °C to 100 °C
			0.8	°C	-45 °C to 130 °C
			0.1	°C	-20 °C to 80 °C (second order interpretation)
			0.4	°C	-45 °C to 130 °C (second order interpretation)
Accuracy TO92/TO220 SOT223			0.35	°C	-10 °C to 100 °C
			1	°C	-45 °C to 130 °C
			0.25	°C	-20 °C to 80 °C (second order interpretation)
			0.8	°C	-45 °C to 130 °C (second order interpretation)
time of measurement		1.8		ms	TA = 25°C, Vcc = 3.3V, 8 periods
Noise			<0.0002	°C	TA = 25 °C, Vcc = 5 V, 1 s measurement time
Output Duty Cycle	0.11		0.93		-45°C to 130°C
Output frequency	0.5		7	kHz	1 - 4 kHz for Vcc= 4.7-5.5 V and TA=-25°C to 110°C
PSRR at Vcc			0.1	°C/V
Repeatability			0.01	°C	TA = 25°C, Vcc = 5V, TO18
Startup time		1	2	ms	after Vcc, start measurement on first negative edge
Long term drift			0,0058	°C	TA = 22°C, Vcc = 5V, 365 days, TO18
Output impedance			100	Ω	by design
Operating Temperature	-45		130	°C
Storage Temperature	-50		150	°C
First order relation between Duty Cycle and temperature : T = 212.77 DC - 68.085
Second order relation between Duty cycle and temperature : T = -1.43 DC 2 +214.56 DC - 68.6

SMT172 Temperature Sensor Absolute Maximum Rating
TA =25°C. All voltages are referenced to GND, unless otherwise noted.

Power supply voltage	-0.5V to 7V
Output pin load	50mA
Operating temperature range	-55°C to 135°C
Storage temperature range	-60°C to 150°C
ESD protection (HBM)	2000V
Junction temperature	200°C
Soldering temperature (SOIC, SOT)	260°C (10s)

SMT172 Temperature Sensor Ordering code:

SMT172-SOT223	SMT172 in SOT223 encapsulation
SMT172-TO18	SMT172 in TO-18 encapsulation
SMT172-TO92	SMT172 in TO-92 encapsulation
SMT172-TO220	SMT172 in TO-220 encapsulation
SMT172-SOIC	SMT172 in SOIC-8 encapsulation
SMT172-HEC	SMT172 in HEC encapsulation
SMT172-DIE	SMT172 DIE (die size 1.7 x 1.3 mm)

Related products:

SMTAS04USBmini	evaluation board for 4 sensors input (USB connection)
SMTAS08USBmini	evaluation board for 8 sensors input (USB connection)
SMT172 to IIC	converts SMT172 signal to I2C signal (or to SMT160 signal)

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Shenzhen ISweek Technology LTD

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Country / Year Established: China / 2014

Membership: BIZ

Business type: Trading Company

President: Li xiaoyang

Address: 16 Floor, Building #3, Zhongke Mansion, Gaoxin South 1st Rd, Hi-Tech Park, Nanshan

Product Category: Sensors

Year Established: 2014

No. of Total Employees: 101-500

Company introduction: <p>
ISweek is the industry sourcing and direct marketing platform launched by OFweek, Chinese high-tech web portal.

ISweek has gathered abundant high-quality industrial products around the world, and is dedicated to providing one-stop product distribution and procurement services for buyers, suppliers, traders, and manufacturers of industrial technology products.

For the projects of telecom communications power, dynamic environmental monitor and access networks ring controllers, we provide fully imported sensing component solutions and support the manufacturers in the industry with necessary techniques and information.

In industrial auto-control and building auto-control, we provide our customers with total solutions of sensing
components, control systems, general cabling and system integration.

The gas sensor combined with the well-developed related temperature and humidity sensors can provide the increasing programs such as air purification, environment protection and granary monitor with excellent sensing and control component services.