This comprehensive design provides a complete system that measures and processes temperature signals inputs from 2-wire, 3-wire, and 4-wire resistance temperature detectors (RTDs) and outputs a 4 to 20-mA current-loop signal corresponding to the temperature processed from the RTD inputs. It is intended as a reference design for process measurement applications in factory automation, field transmitters and building automation. With less than 0.17°C maximum measured error over -200°C to 850°C, extremely low loop power consumption 1.4mA (typical including RTD biasing currents) and IEC61000 pre compliance testing, this design significantly reduces the design time for development of high accuracy temperature transmitter systems. It also addresses system level calibration - both offset and gain that can be implemented to improve ADC and DAC accuracy as well as also includes linear interpolation to address the non-linearity of the RTD element.
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。
下載立即可用的系統檔案以加速您的設計流程。
設計與潛在替代方案中包括 TI 產品。
| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| 類比設計期刊 | Low-IQ synchronous buck converter enables intelligent field-sensor applications | 2016/4/26 | ||||
| 使用指南 | RTD Temp Transmitter for 2-Wire 4- to 20-mA Current Loop Systems (Rev. A) | 2014/2/11 |