| 高性能模拟前端AD7714及其应用 |
| |
| 引用本文： | 吴永忠. 高性能模拟前端AD7714及其应用[J]. 电子工程师, 2006, 32(8): 56-59 |
| |
| 作者姓名： | 吴永忠 |
| |
| 作者单位： | 合肥工业大学计算机与信息学院,安徽省,合肥市,230009 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划)，安徽省重点项目 |
| |
| 摘 要： | AD7714是一个完整的用于低频测量应用的模拟前端。其主要特点是:使用Σ-Δ转换技术,转换精度高;具有片内可编程增益放大器和低通数字滤波器;具有SPI通信接口等。通过实验,提炼出了AD7714技术说明书中没有明确的特性和技术指标,纠正了其中的错误,讨论了在应用上的技术要点、缺点,介绍了在“863”重点引导项目和安徽省“十五”重点攻关项目中的应用。
|
| 关 键 词： | A/D转换器 模拟前端 AD7714 技术概要 应用要点 |
| 收稿时间： | 2005-06-08 |
| 修稿时间： | 2006-06-07 |
High Performance Analog Front End AD7714 and Its Applications |
| |
| WU Yongzhong. High Performance Analog Front End AD7714 and Its Applications[J]. Electronic Engineer, 2006, 32(8): 56-59 |
| |
| Authors: | WU Yongzhong |
| |
| Affiliation: | Hefei University of Technology, Hefei 230009, China |
| |
| Abstract: | AD7714 is a complete analog front end for low-frequency measurement applications.It employs a sigma-delta conversion technique to realize 24 bits of no missing codes performance.Its on-chip amplifier gain and digital filter can be programmed via the on-chip register.It also offers SPI interface with CPU.Some unclear features in the user manual offered by Analog Devices inc.are clarified,an error is corrected.The key methods and some problems of application are discussed.In the end,two applications are presented. |
| |
| Keywords: | A/D converter analog front AD7714 features key applications |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
