最近在使用ADS1247进行新产品设计,ADC的DVDD和AVDD均为3.3V,目前基准源采用REF3430 3.0V基准源,设备能够正常采样工作,精度也基本满足设计要求,但是在ADS1247产品手册中发现标出的Max Vref=(AVDD-AVSS)-1 V,按照该参数,我的基准源电压最高只能输入2.3V,但为什么我的设备依旧能正常工作?
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