TIDA-010133
高阻抗、500MHz 带宽示波器模拟前端参考设计
TIDA-010133
概述
High Bandwidth data acquisition systems, like a digital storage oscilloscope (DSO), require the analog front-end (AFE) signal chain to have wide (-3dB) bandwidth to measure a wide range of signals, optional high input impedance to prevent loading of the measured signal, low noise to prevent degradation of signal to noise ration (SNR), and good distortion performance to maintain signal fidelity. Typical implementations of an AFE typically requires either a complex discrete design or the development of a custom front-end ASIC. This reference design provides a simpler cost-effective AFE without sacrificing performance.
特性
- 500MHz input bandwidth
- Selectable impedance (50Ω or 1MΩ)
- Support DC/AC coupling
- Wide dynamic range of 40dB programmable gain
- Support trigger function
- Precision DAC for offset control and commonmode control
- SMA connector to support TI high-speed ADC EVM
我们开发的全面组装电路板仅用于测试和性能验证，不可用于销售。
设计文件和产品
设计文件
下载现成的系统文件，加快您的设计过程。
产品
在设计中包括 TI 产品和可能的替代产品。
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| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 设计指南 | 高阻抗、500MHz 带宽示波器模拟前端参考设计 | PDF | HTML | PDF | HTML | 2026-7-13 |