RTD replacement for cold junction compensation reference design in a temperature sensor
Description
Temperature-sensing applications that use a thermocouple (TC) require an accurate local temperature sensor to achieve high accuracy. Solutions for design challenges such as cold-junction compensation (CJC) or including an ultra-low power TC analog front-end are highlighted and addressed in this reference design. Performance in terms of power consumption and accuracy is optimized for accurate 4 to 20 mA sensors while also demonstrating the performance of different CJC and TC front-end implementations.
Features
- Ultra-low power TC front end: RTD type performance with silicon temperature sensors16-bit ADC for 0.05 °C resolutionComparing different CJC solutionsTC temperature from -270 °C to 1200 °C
Applications
- Oscilloscopes & digitizers
- Temperature transmitter
- Aircraft cockpit display
- Flight control unit
- Interconnect/distribution box
- Data acquisition (DAQ)
- Appliances: battery charger
- Temperature controller
- Circuit breaker (ACB
- MCCB
- VCB)
- Weigh scale
Product Categories
- Sensors