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INA210: Why is the recommended working voltage 5V?

Part Number: INA210

Hi Team,

My customer is going to use INA210CIDCKR as the second sockets of INA210CQDCKRQ1, do you have any comments? it can be seen form the datasheet that the Operating supply voltage(Vs) of INA210CIDCKR  is 5V, but for INA210CQDCKRQ1 it is 2.7-26V. Does the former also have a range, or is it optimized for 5V?



  • Hi Hailiang,

    have you seen the "operating voltage range" specification on page 9 of datasheet?


  • Hailang,

    The answer to your question is actually "both." As Kai points out, the operating voltage range specification shows that, similar to the automotive version, the device is able to be supplied with a voltage ranging from 2.6V to 26V. We can also infer from Figure 8 of the datasheet that 5V is the supply voltage where the PSRR curve of the device is characterized (if you read through the EC table, several other device properties are also characterized at 5V. Examination of the automotive grade yields the same. 

    In short, while the format of table 6.3 of both datasheets are different in layout, they effectively communicate the same thing when you consider the range Kai points out. Both parts are 2.7-26V capable, and are characterized at 5V, which means you will get the best performance there.