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AD7606传递函数疑问ࡧ

Thread Summary

The user asked about the AD7606 ADC transfer function and whether to use 4.5V or 2.5V for REF when using the internal 2.5V reference. The final answer confirms that 2.5V should be used for REF in the calculation.
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Category: Hardware
Product Number: AD7606

Datasheet中描述, AD7606 ADC传递函数为  ±10V CODE =(Vin/10V) × 32,768 × REF/2.5V,

但是, Datasheet中又说, AD7606内置一个基准电压缓冲, 缓冲配置为将REF电压放大至约4.5V. 

我的应用中,配置为使用内部2.5V基准电压. 

那么,我这里计算ADC采样结果时, REF值是要代入4.5V还是代入2.5V计算呢?

回复请@给 ynie509@QQ.com

谢谢!

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