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我在ADS1243-HT datasheet中也没有找到这两个参数，但是我在下面链接中Compare all products in Precision ADCs (<=10MSPS)处看到ADS1243-HT的SNR参数是124dB。THD参数我也在E2E英文论坛发帖咨询美国的工程师了，您可以关注帖子进展：e2e.ti.com/.../815544 www.ti.com/.../ADS1243-HT
