TIDA-00189
隔離迴路供電熱電偶發送器參考設計
TIDA-00189
概覽
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
特點
- Sensor input compatible with k-Type Thermocouple probes ( -200°C to +1375°C)
- Operating temperature of the circuit -40°C to +85°C
- Implements Cold Junction compensation (RTD based)
- Front End accuracy < 0.5°C (-200°C to +270°C) and < 0.15% (270°C to +1375°C)
- 4 to 20mA current loop output signal
- Design to meet IEC 61000-4-5
已開發完全組裝的電路板,僅供測試與性能驗證,且為非賣品。
設計檔案與產品
設計檔案
下載立即可用的系統檔案以加速您的設計流程。
產品
設計與潛在替代方案中包括 TI 產品。
MSP430F5172 — 具 32KB 快閃記憶體、2KB SRAM、10 位元 ADC、比較器、DMA 和 16 位元高解析度定時器的 25MHz MCU
開始開發
技術文件
| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 設計指南 | Isolated Loop Powered Thermocouple Transmitter Design Guide (Rev. B) | 2016/7/19 | |||
| 技術文章 | What’s next for Industry 4.0? The best new technologies shaping the future of smar | PDF | HTML | 2016/11/7 |