尊敬的TI专家:
您好,我们准备用ADS1220搭建热电偶采集电路,初步构想如下:采用8片 ADS1220,每片ADS1220的CS管脚对地,CLK、SCLK、DIN
共用,每片ADS1220的DOUT/DRDY管脚单独引出, DRDY管脚引出一个即可(判断数据准备好信号),这种方案是否可行,谢谢。
另,在冷端补偿时,无论是芯片自带的测温采集,还是外接RTD测温,在正常采集热电偶信号时,间隔多长时间采集冷端补偿信号比较好,
谢谢。
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