INA2181: common mode operating condition

Hi Shoo,

according to sections 7.3, 8.3.3, 8.4.1 and figures 44 to 48 and many others places in the datasheet, the common mode input voltage may go down to -0.2V. But keep in mind, that you are only 0.1V away from the absolute maximum rating of -0.3V. So, even the least glitch may make the INA2181 go into latch-up or even damage.

Also, the common mode rejection is only specified for input voltages between 0V and +26V. This can mean that the performance of INA2181 may degrade for input voltages below 0V.

Kai

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Kai

HI Kai and Cierra

This works for you ?

Hi Kai,

Got it! Thanks for your comment.

I will feedback to my customer.

Thanks,

Shoo