Thermocouples are widely used in industrial applications because of their ability to accurately measure a wide range of temperatures, from approximately -200°C to +2300°C, in hostile environments such as liquid nitrogen cooling systems and processes using ovens or furnaces. Thermocouples are small, rugged, relatively inexpensive, and more linear than other sensors; and their nonlinearity has been well characterized.
Thermocouple signal levels are low (millivolts) and require precise amplification. In addition, the thermocouple wires are subject to electromagnetic fields due to power lines and other sources, and these large common-mode voltages must be rejected in order to extract the low level thermocouple signal.
Circuits from the Lab reference designs featured in the table below enable quick integration and evaluation. Expand your knowledge of thermocouple temp measurement, as well as signal chain design. Download the Thermocouple Temperature Measurement Systems Reference Design Brochure to learn more. (pdf)
About Circuits from the Lab® Reference Designs
Circuit from the Lab reference designs are built and tested for function and performance by ADI's applications experts, and are commonly used in analog signal chain design as standalone solutions, or to build more complex circuits and subsystems.
These proven reference designs support quick and easy evaluation, prototyping, and design integration, and offer:
- Comprehensive documentation
- Complete design and integration files
- Factory-tested evaluation hardware
Browse ADI's library of over 200 built and tested reference designs.