TI ADS5294 80MSPS 8路医学图像解决方案

TI公司的ADS5294是80MSPS/14位 8路ADC,具有低功耗,高SNR和低SFDR,以及连续过载恢复,适用于高性能系统设计. ADS5294具有数乁信号处理核,包括数字滤波器模块, 可编程数字增益0 dB到12 dB,内部和外接基准电压,1.8V工作电压,主要用在超声图像,通信设备和多路数据采集.本文介绍了ADS5294主要特性,方框图, 模拟输入模型和电路,评估模块测试图以及评估模块电路图,材料清单和PCB布局图.

Using CMOS process technology and innovative circuit techniques, the ADS5294 is a low power 80MSPS 8-Channel ADC. Low power consumption, high SNR, low SFDR, and consistent overload recovery allow users to design high performance systems.

The ADS5294 has a digital processing block that integrates several commonly used digital functions for improving system performance. It includes a digital filter module that has built-in decimation filters (with low-pass, high-pass and band-pass characteristics).

The decimation rate is also programmable (by 2, by , or by 8). This makes it useful for narrow-band applications, where the filters can be used conveniently to improve SNR and knock-off harmonics, while at the same time reducing the output data rate. The device includes an averaging mode where two channels (or even four channels) can be averaged to improve SNR.
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