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ADS8557 和ADS8548的区别

Other Parts Discussed in Thread: ADS8558, ADS8548

从为28346选一款ADC芯片,从TI的ADC列表搜出来有ADS8558和ADS8548 14bit的600~670K采样率的比较适合,我的疑问是:

1:他们除了采用率和通道数不同以外,还有那些不同?好像都是同步采样的,从第一列的产品名称看到同步采样,看到spec中也有图显示每个通道都有S/H,但是我从横的特性表把 simultaneous sampling ADCs打勾,竟然没有出现ADS8548,那位能说明下原因吗?我把从TI 网站上的截图发上来供大家参考?难道除了采用率和通道数有变化,还有其他本质上的不同吗?谢谢!