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ADS7854: Vocm of the input driver THS4552 from ADS7854's REFIO_X

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Part Number: ADS7854

Hi all

Would you mind if we ask ADS7854?

Our customer will use ADS7854 to detect the motor current.
They use THS4552, and try to connect REFIO_X to THS4552's Vocm via voltage follower ampilifier as follows;

REFIO_A->voltage follower ampilifier->THS4552_A
REFIO_B->voltage follower ampilifier->THS4552_B

So, is it possible to use with following construction?

REFIO_A->voltage follower ampilifier---->THS4552_A
                                                            |--->THS4552_B

From the viewpoint of commmon noise, should we use separate REFIO_Xs?
Because, it is possible, they would like to reduce voltage follower ampilifier.

Kind regards,

Hirotaka Matsumoto

  • Hello Hirotaka Matsumoto San

    We have received similar query over email and I have answered that query over mail. I have asked TI representative to get in touch with you

    Thanks & Regards

    Abhijeet

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