TIDA-00942
适用于数字转换器的 12 位、20MSPS 数据采集参考设计
TIDA-00942
概述
This reference design enables a cost-effective and low-power data acquisition system that provides an alternative to FPGA-based systems. It features a single-ended, high-impedance input that can be used in a wide number of applications, including portable instrumentation and digitizers.
The reference design utilizes the ADS4122 analog-to-digital converter (ADC), along the with the OPA656 and THS4541 operational amplifiers (op amps) to develop a 12-bit, 20-MSPS digitizer for the BeagleBone Cape form factor. The expansion board devleoped in this reference design interfaces with the BeagleBone Black development platform, which is a low-cost, open-source, community-supported environment based on the ARM Cortex-A8 processor.
特性
- Single-ended-to-differential data acquisition reference design using the OPA656 and THS4541 op amps
- Low-power (330/channel) operation suitable for handheld devices
- Option to choose between 50 ohm / 1 Mohm input impedance
- Low system cost; replaces FPGA for data capture with Sitara™ processor (BeagleBone Black)
- 2V peak-to-peak input voltage range
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
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产品
在设计中包括 TI 产品和可能的替代产品。
技术文档
| 类型 | 标题 | 下载最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 设计指南 | 12-Bit, 20-MSPS Data Acquisition Reference Design for Digitizers | 2016年 10月 2日 |