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你好，我现在计划的采样频率是2.56mhz，计划采用dsp+外部ad的方案，请问应该选择什么样的采样芯片比较合理，还有主芯片采用150mhz的28335能不能满足？
精度要求在5%。
TI有高速ADC，大于10MSPS甚至到达Gsps的采样率的ADC都有，不知你需要多少bit的，可以先看下选型指南：
http://www.ti.com/lsds/ti/data-converters/adcs/high-speed-adcs-products.page
谢谢推荐
