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Single Supply Temperature Sensing with Thermocouples

From Microchip Technology, Inc.
 

 
There is a variety of temperature sensors on the market all of which meet specific application needs. The most common sensors used to solve these application problems include the thermocouple, Resistive Temperature Detector (RTD), Thermistor, and silicon based sensors. For an overview and comparison of these sensors, refer to Microchip?s AN679, There is a variety of temperature sensors on the market all of which meet specific application needs. The most common sensors used to solve these application problems include the thermocouple, Resistive Temperature Detector (RTD), Thermistor, and silicon based sensors. For an overview and comparison of these sensors, refer to Microchips AN679, Temperature Sensing Technologies. This application note focuses on circuit solutions that use thermocouples in the design. The signal conditioning path for the thermocouple system will be discussed in this application note followed by complete application circuits.
Product Announcements
Smith Systems, Inc. - Temperature Sensors
Thermo-Tran High Reliability Temperature thermistor sensor probes are available in a variety of configurations. (read more)
Heaters Controls & Sensors - Thermocouples & RTD Assemblies, Industrial
Industrial RTD Assemblies and Industrial Thermocouples from Heaters, Controls & Sensors. HSC's Industrial Thermocouples and RTD Assemblies are manufactured using high quality contamination and... (read more)
Smith Systems, Inc. - Sensors with Combined Technologies
Smith Systems, Inc. has the in-house capability to combine speed, direction and temperature sensing in the same sensor housing. Applications with special sensing requirements or with limited room for... (read more)
Smith Systems, Inc. - Thermistor Sensor probes, Temperature probes
Thermo-Tran High Reliability Temperature thermistor sensor probes are available in a variety of configurations. Smith Systems experience ranges from high-reliability turbine exhaust gas temperature... (read more)
DCC Corporation - HotSpot Thermocouple Welders
HotSpot Thermocouple Welder from DCC Corporation. The easy to use HotSpot Capacitive Discharge Welder is designed to help solve your thermocouple fabrication and attachment problems. Visual &... (read more)
Smith Systems, Inc. - Custom Temperature Probes - Thermo Probes
Smith Systems, Inc. manufactures custom temperature probes to match your specifications. Smith Systems, Inc. is experienced in creating custom product designs for the customer's specific needs. These... (read more)
Heaters Controls & Sensors - Custom Control Panels and Temperature Panels
Temperature Control Panels and Custom Control Panels for a wide variety of applications are manufactured by Heaters Controls And Sensors. From Custom Control Panels, Temperature Control Panels that... (read more)
Fluke Corporation - Calibration Instruments - The Black Stack Thermometer Readout - Model 1560
Hart's Black Stack thermometer has been on the market for five years and has established itself as one of the most versatile, cost-effective, accurate readouts in the world. Nothing about this... (read more)
Fluke Corporation - Calibration Instruments - 1529 Chub-E4 Standards Thermometer
So you need multiple channels, battery power, outstanding accuracy, and the ability to read many different sensor types—but you don't need all the power of a 1 ppm Super-Thermometer. We have the... (read more)
Conax Technologies - Autoclave Temperature Probes
Conax Technologies is the industry leader in the design and fabrication of autoclave temperature probes, high temperature thermocouples, temperature sensors, etc. Conax temperature and control sensors... (read more)
Topics of Interest
There is a variety of temperature sensors on the market all of which meet specific application needs. The most common sensors that are used to solve these application problems include the... (Read More)
This application note shows how to select a temperature sensor and conditioning circuit to maximize the measurement accuracy and simplify the interface to the microcontroller. Practical circuits and... (Read More)
14.4 Temperature sensors The most common electronic temperature measurement devices currently available include the thermocouple, the resistance temperature detector, the thermistor, and the... (Read More)
Like the RTD, the thermistor is also a temperature-sensitive resistor. The name thermistors is derived from the term “thermally sensitive resistors,” since the resistance of the... (Read More)
Thermocouples are the simplest form of temperature sensors. Thermocouples are normally: * Very inexpensive * Easily manufactured * Effective over a wide range of temperatures Thermocouples come in... (Read More)