我只用一个ADS1271,SYNC引脚怎么接,接地?拉高?还是接普通IO口?DRDY接SPI1-NSS还是接普通IO口?SCLK多大时钟比较好?
ADS1271输出的是16进制吗?如果我用的ICP传感器输出信号比较大,可以不用调理电路吗?谢谢了
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附件没有ICP部分的电路,从附件的架构图来看,PGA202做放大,利用OPA1632做一个共模电压为2.5V的单端到差分的转换?但看OPA1632电路是个开环,如果只需要做一个单端到差分转换,增益为1的电路,可参考OPA1632datasheet中有给出参考电路,可以参考下。