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THP210: Output

Knute Ray
Prodigy 240 points
Part Number: THP210

Is it ok to ground the OUT- on this part.  The output is going to go to an analog card in a computer and to isolate the return, it would be connected to the common return on the analog card.

  • 0
    TI__Guru 52426 points

    Hi,

    The THP210 is a Fully-Differential Amplifier (FDA). 

    You can not ground the OUT- terminal of the FDA.

    On a fully-differential amplifier, the output stage (OUT+ and OUT-) provides a fully-differential symmetrical signal around the VOCM pin voltage.

    The VOCM voltage sets the common-mode voltage of the differential signal, where the VOCM pin is typically biased around mid-supply. See plot below.

    If you wish to learn about Fully-differential amplifiers , please review the following short video tutorials.

    TI Precision Labs- Fully Differential Amplifiers

    Thank you and Regards,

    Luis