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LMH3404 Power Pins

Hans
Genius 12725 points
Other Parts Discussed in Thread: LMH5401, LMH3401

Hello Team,

is it possible to leave some power pins not connected if using only one channel?

In other words: Are some VS+ and VS- pins internally connected to channel A and others to channel B?

This would save blocking caps if only using one channel.

Thanks and Best Regards,

Hans

  • 0
    TI__Genius 13935 points

    Hello Hans,

    There are ESD diodes between the two amplifier power supply busses. So they are not entirely independent. 

    It would be better to connect all of the supply pins and then just wire the enable pin to ground. 

    If a single amplifier is needed we have both the LMH3401 and the LMH5401 that offer similar performance to the LMH3404. 

    Regards,

    Loren