Digital Temperature Sensors and the Internet of Things
Learn how digital temperature sensors play a key role in our digital and connected world.
Digital Temperature Sensors
Digital temperature sensors can convert temperature physical quantity and humidity quantity into a digital sensor through a temperature and corresponding circuit. The Temperature System Sensors (TSYS) are available in miniature packages designed specifically for tight spaces, and respond quickly to changes in process temperature. The optimized microcircuit design allows fast conversion times along with very low power consumption.
Product Overview
Digital Temperature Sensor Portfolio
- Precise readings to 0.1°C
- Operating temperatures from -40°C to 125°C
- Digital (configurable I²C / SPI / SDM) output signal options
- Fast step response
- Low current consumption options for maximum battery life
- Compact design with low thermal mass
- QFN16, TDFN8 and XDFN6 packages available for simple integration
- Factory calibrated
- Ideal for battery-powered application
- Enlarged voltage range: 2.4V to 5.5V
- Excellent 16-bit resolution
Featured Applications
Digital Temperature Sensors
Digital temperature sensors are commonly used in applications including:
- Home appliances
- Medical devices
- Consumer electronics
- Smart home applications
- Thermostats and HVAC
Featured Product
TSYS03 Digital Temperature Sensors
TE Connectivity’s TSYS03 digital temperature sensor series are designed to provide accurate temperature measurements in a miniature (TDFN8) or ultra-small (XDFN6) surface mount package with very low power requirements.
- Factory calibrated, available with an I2C digital output, and operate over a wide temperature range from -40°C to +125°C.
- Wide voltage range and a programmable I2C address allows multiple TSYS03 sensors to operate on the same I2C bus.
- 16 bits of resolution and an accuracy of ±0.5°C make this sensor ideal for a wide range of applications.
- The TSYS03 is a full-digital temperature sensor in a miniature TDFN8 package with dimensions of 2.5 x 2.5 x 0.75mm or an even smaller XDFN6 package with dimensions of 1.5 x 1.5 x 0.38mm.
What is the difference between analog and digital temperature sensors?
| Feature | Analog | Digital |
|---|---|---|
| Accuracy |
Total system accuracy is the sum of sensor elements and measurement circuitry. ±0.2ºC sensor accuracy typically only ½ of total error budget | System Accuracy ±0.1ºC |
| Very Low Power |
Always on voltage divider constantly drains power | Very low-power sleep modes between active sense cycles |
| Data Quality Reliability |
Degradation due to contact and lead resistance, noise, A/D conversion, the possibility for erroneous readings | Digital data is either valid or null |
| Integration Effort |
External circuitry, coding of lookup tables, system validation | Simple I/O call with straightforward data conversion |
| Cost/Accuracy Ratio |
Need sensor, external resistors, stable voltage supply, quality A/D |
Competitive and declining price trend |
| Size |
Available in <1mm two-wire configuration | Down to 2.5 x 2.5 x 0.8mm package, die possible for hybrid circuit application |
Digital Temperature Sensor Webinar
This webinar explores the technical developments and industry trends that drive the sensor industry with a focus on digital temperature.
TSYS03 Digital Temperature Sensors
The TSYS03 from TE Connectivity is an ultra-compact and precise digital temperature sensor. Watch this video to learn more.
