AT30TS75-SS8-B

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Sensor Type:	Digital, Local
Sensing Temperature - Local:	-55°C ~ 125°C
Sensing Temperature - Remote:	--
Output Type:	I²C/SMBus
Voltage - Supply:	2.7 V ~ 5.5 V
Resolution:	11 b
Features:	One-Shot, Output Switch, Programmable Limit, Programmable Resolution, Shutdown Mode
Accuracy - Highest (Lowest):	±1.5°C (±3°C)
Test Condition:	0°C ~ 55°C (-20°C ~ 125°C)
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC

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Temperature Sensors - Analog and Digital Output

Temperature sensing is a fundamental technology in indispensable in a wide range of applications, from tasks as simple as temperature monitoring and control to complex embedded systems. Analog and digital temperature sensors and temperature transducers are the instruments typically used to detect temperature in applications most commercially. Among these, the AT30TS75-SS8-B is one of the most commonly used digital temperature sensors that provides a digital and analog output. This article discusses the application field and working principle of the AT30TS75-SS8-B.

Application Field

The AT30TS75-SS8-B is a cost-effective digital temperature sensor designed for a wide range of temperature sensing applications. It can be easily implemented in many consumer and industrial applications such as HVAC, automotive, medical, industrial automation, IoT, and many more.The AT30TS75-SS8-B is suitable for both AC and DC applications. Its output format is digital and analog which is highly compatible with many industry-standard control systems. Additionally, the device has very low self-heating, making it suitable for temperature measurements in tight spaces.

Working Principle

The AT30TS75-SS8-B transduces heat energy into electrical signals. It is based on the principle of a thermistor, a resistor whose resistance is sensitive to temperature changes.The device contains a special circuit comprised of a PTC thermistor and precision resistors. When a temperature change occurs, it causes the resistance value of the PTC thermistor to vary. The resistance change is then converted by the circuit into a digital RTD-like signal (in either the 2-wire or 3-wire format) and a linear analog voltage signal.In order to improve accuracy, the device is provided with an 8-bit resolution data EEPROM and a calibration table. The calibration table stores the temperature measured by the NVT (Normalized Voltage Transducer) and the digital code corresponding to the analog output. The EEPROM is programmed with unique ID and calibration information to ensure the accuracy of the measurement.To finalize the working principle, the device\'s communication is based on the SMBus protocol - an I2C-based protocol used for communication between different devices.

Conclusion

In conclusion, the AT30TS75-SS8-B is a cost-effective digital temperature sensor suitable for many consumer and industrial applications. It relies on the principle of a thermistor which is sensitive to temperature changes. The device utilizes the SMBus protocol to communicate with other devices and it is provided with an 8-bit resolution data EEPROM and a calibration table to improve accuracy.

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