DAC161P997
- 16-Bit Linearity
- Single-Wire Interface (SWIF), with Handshake
- Digital Data Transmission (No Loss of Fidelity)
- Pin Programmable Power-Up Condition
- Self Adjusting to Input Data Rate
- Loop Error Detection and Rreporting
- Programmable Output Current Error Level
- No External Precision Components
- Simple Interface to HART Modulator
- Small Package: WQFN-16 (4 × 4 mm, 0.5 mm Pitch)
- Key
- Output Current TempCo: 29 ppmFS/°C (Max)
- Long-Term Output Current Drift: 90 ppmFS (Typ)
- INL: 3.3/–2.1 µA(Max)
- Total Supply Current: 190 µA (Max)
Application
- Two-Wire, 4-20 mA Current Loop Transmitter
- Industrial Process Control
- Actuator Control
- Factory Automation
- Building Automation
- Precision Instruments
- Data Acquisition Systems
- Test Systems
All trademarks are the property of their respective owners.
The DAC161P997 is a 16-bit ΣΔ digital-to-analog converter (DAC) for transmitting an analog output current over an industry standard 4-20 mA current loop. It offers 16-bit accuracy with a low output current temperature coefficient (29 ppm/°C) and excellent long-term output current drift (90 ppmFS) while consuming less than 190 µA.
The data link to the DAC161P997 is a Single Wire Interface (SWIF) which allows sensor data to be transferred in digital format over an isolation boundary using a single isolation component. The DAC161P997’s digital input is compatible with standard isolation transformers and opto-couplers. Error detection and handshaking features within the SWIF protocol ensure error free communication across the isolation boundary. For applications where isolation is not required, the DAC161P997 interfaces directly to a microcontroller.
The loop drive of the DAC161P997 interfaces to a HART (Highway Addressable Remote Transducer) modulator, allowing injection of FSK modulated digital data into the 4-20 mA current loop. This combination of specifications and features makes the DAC161P997 ideal for 2- and 4-wire industrial transmitters.
The DAC161P997 is available in a 16-lead WQFN package and is specified over the extended industrial temperature range of –40°C to 105°C.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | DAC161P997 Single-Wire 16-bit DAC for 4- to 20-mA Loops 数据表 (Rev. G) | PDF | HTML | 2014-12-24 | ||
| 电路设计 | 使用 DAC8740H 替代 HART® 调制解调器器件竞争产品的电路 | PDF | HTML | 英语版 | PDF | HTML | 2026-1-29 | |
| 应用手册 | HART 协议基本指南 | PDF | HTML | 英语版 | PDF | HTML | 2023-11-10 | |
| 应用手册 | AN-2245 MSP430 Interface to DAC161P997 Code Library (Rev. A) | 2013-4-22 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
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观看 TIDA-00349 概述视频，其中介绍了与 TIDA-00189 (...)
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WQFN (RGH) | 16 | Ultra Librarian |
订购和质量
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