Description

The Isolated Loop powered Thermocouple Transmitter reference design is a system solution providing precision K-type thermocouple measurements for 4 to 20-mA isolated current-loop applications. This design is intended as an evaluation module for users to fast prototype and develop end-products for process-control and factory-automation. Potential challenges with thermocouples as a temperature sensor include tiny voltage outputs: low sensitivity and nonlinearity; in addition: because in industrial environments ground potential differences higher than 100V are common: thermocouple and signal conditioning circuitry must be galvanically isolated. The design files include design considerations: block diagrams: schematics: Bill of Materials (BOM): layer plots: Altium files: Gerber Files: and MSP430 Firmware.Watch the TIDA-00349 Overview video: covering the same isolated power topology as used in the TIDA-00189 NOW