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ADC12DJ5200RF: Questions on INB Usage and Trimming in ADC12DJ5200RF

Part Number: ADC12DJ5200RF


Tool/software:

To the TI Support Team,

In our current project, we are configuring the ADC12DJ5200RF in single channel mode and are actively evaluating the use of the INB input instead of INA, depending on system use-case scenarios.
In particular, our customer would like to apply their own trimming to the INB path for use in their application.

Given this context, we would like to ask the following questions:

[Question 1]
We are planning to apply trimming to the INB input individually for each ADC12DJ5200RF chip.
Is it possible for us to perform such trimming ourselves—for example, through register settings or other configurable methods?

[Question 2]
If trimming has been completed for the INB input of a given ADC12DJ5200RF chip, is there a possibility that the INB performance may drift over time, requiring us to re-trim the same chip?

We sincerely appreciate your continued support and guidance.

Best regards,
Jeongju Go