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.
완조립 보드는 테스팅과 성능 검증을 위해서만 개발되었으며 판매를 위한 것이 아닙니다.
바로 사용 가능한 시스템 파일을 다운로드하여 설계 프로세스에 속도를 높여 보십시오.
설계 구성요소, 참조 지정자 및 제조업체/부품 번호의 전체 목록
TI 제품을 설계 및 잠재적 대안에 포함합니다.
| 유형 | 직함 | 최신 영어 버전 다운로드 | 날짜 | ||
|---|---|---|---|---|---|
| 아날로그 디자인 학술지 | Low-IQ synchronous buck converter enables intelligent field-sensor applications | 2016. 4. 26 | |||
| 사용 설명서 | RTD Temp Transmitter for 2-Wire 4- to 20-mA Current Loop Systems (Rev. A) | 2014. 2. 11 |