我的VREFP,VREFN如图连接,则表明是内部参考电压,那么在后面的代码换算中 VREF = 4.5V?
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是的,下面链接中有 “ADS129x设备如何将ADC输出代码转换为电压",您可以参考下:
https://e2echina.ti.com/support/data-converters/f/data-converters-forum/192643/faq-ads129x
下面FAQ中有EVM 代码示例,希望对您有帮助: