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LMH6611: Equivalent Circuit During Shutdown

Hugh Brunk1
Prodigy 10 points
Part Number: LMH6611

Figure 67 appears to be wrong; the parts I have are behaving as if there is only one back-to-back diode combination, and not two.  In shutdown I have approximately 0.8V across the inputs, and am drawing about 10mA.  Can you verify this?

Thank you!

  • 0
    TI__Genius 15565 points

    Hello Hugh,

    I've checked this and figure 67 accurately represents the inputs of the device. The voltage drop needed to trigger these diodes isn't specified however.

    I would recommend trying to bring down the differential voltage across the inputs, the datasheet includes a suggestion of using a switch to GND at the output. 

    Best,

    Hasan Babiker