DAC161S997
- 16-Bit Resolution
- Very-Low Supply Current of 100 µA
- 5 ppmFS/°C Gain Error
- Pin-Programmable Power-Up Condition
- Loop-Error Detection and Reporting
- Programmable Output-Current Error Levels
- Simple HART Modulator Interfacing
- Highly Integrated Feature Set in Small
Footprint WQFN-16 (4- × 4-mm,
0.5-mm Pitch)
The DAC161S997 is a very low power 16-bit ΣΔ digital-to-analog converter (DAC) for transmitting an analog output current over an industry standard 4-20 mA current loop. The DAC161S997 has a simple 4-wire SPI for data transfer and configuration of the DAC functions. To reduce power and component count in compact loop-powered applications, the DAC161S997 contains an internal ultra-low power voltage reference and an internal oscillator. The low power consumption of the DAC161S997 results in additional current being available for the remaining portion of the system. The loop drive of the DAC161S997 interfaces to a Highway Addressable Remote Transducer (HART) modulator, allowing injection of FSK modulated digital data into the 4-20 mA current loop. This combination of specifications and features makes the DAC161S997 ideal for 2- and 4-wire industrial transmitters. The DAC161S997 is available in a 16-pin 4-mm × 4-mm WQFN package and is specified over the extended industrial temperature range of –40°C to +105°C.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | DAC161S997 16-Bit SPI-Programmable DAC for 4-20 mA Loops datasheet (Rev. A) | PDF | HTML | 2014. 12. 29 | |
| Circuit design | Circuit Replacing HART® Modem Device Competitors With the DAC8740H | PDF | HTML | 2026. 1. 29 | ||
| Circuit design | Loop-Powered 4mA to 20mA Transmitter Circuit (Rev. A) | PDF | HTML | 2024. 9. 19 | ||
| 아날로그 디자인 학술지 | 태양광 애플리케이션에서 확장 가능한 입력 바이패스 스위치로 이상적인 다이 오드 컨트롤러를 사용하는 방법 | PDF | HTML | Download English Version | 2024. 6. 27 | |
| 아날로그 디자인 학술지 | 4mA~20mA 루프 전원 공급 트랜스미터 설계 | PDF | HTML | Download English Version | 2024. 6. 26 | |
| 애플리케이션 노트 | A Basic Guide to the HART Protocol | PDF | HTML | 2023. 11. 9 | ||
| 기술 문서 | Powering smart sensor transmitters in industrial applications | PDF | HTML | 2016. 5. 2 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
DAC161S997EVM — DAC161S997 16비트 DAC, 내부 레퍼런스 및 4~20mA 전류 루프 드라이브 평가 모듈
DAC161S997EVM helps evaluate the DAC161S997, 4-20mA Loop driver with SPI interface. This board is designed as a 2-Wire loop-powered transmitter. It has a MSP430G2553 MCU which comes preloaded with a firmware which communicates with PC Software and can read/write DAC register according to the user (...)
SLAC782 — Source Files for SLAA866
TIDA-00095 — 2와이어, 4 ~ 20mA 전류 루프 시스템용 RTD 온도 트랜스미터
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 (...)
TIDA-00165 — 소형 폼 팩터, 2와이어 4~20mA 전류 루프 RTD 온도 트랜스미터 레퍼런스 디자인
This is a reference design for a robust, low power, precise and long-term stable 2-wire loop powered 4 to 20mA current output temperature transmitter. It uses RTD temperature sensor with 4 to 20mA current loop transmitter. It also explains sensor signal conditioning, ratiometric measurement (...)
TIDA-00483 — FSK 모듈화를 통한 싱글 전류-루프를 사용한 듀얼 센서 측정 레퍼런스 디자인
The TIDA-00483 reference design demonstrates a 4-20mA current loop subsystem capable of measuring the surrounding environment and communicating the temperature, humidity, and ambient light over the loop. The small footprint of the design contains all sensors, filters, and control circuitry to (...)
TIDA-00648 — 4~20mA 전류 루프 트랜스미터 레퍼런스 디자인
TIDA-00648 is an industry standard 4-20 mA current-loop transmitter. It allows injection of FSK-modulated digital data into the 4-20 mA current loop for HART communication. External protection circuitry is deployed in-place for compliance with regulatory IEC61000-4 standards such as EFT, ESD and (...)
TIDA-00666 — 4~20mA 전류 루프 전원 사용 필드 트랜스미터 BLE 연결 레퍼런스 디자인
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WQFN (RGH) | 16 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.