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THS4522: THS4522 differential input voltage range

Will DeCook
Prodigy 240 points
Part Number: THS4522

There is some ambiguity in the THS4522 datasheet regarding the differential input range for the device. The Absolute Maximum Ratings table (7.1) shows an input/output voltage of (VS-)-0.7 to (VS+)+0.7V. This same table also shows that the max differential input voltage, VID, is 1V. I interpret this as saying that Vin± can be from (VS-)-0.7 to (VS+)+0.7V, but the difference between the two can only be a maximum of 1V. Is that correct? Or is the 1V figure wrong? It seems like a pretty tight limitation.

If 1V is indeed the maximum differential input voltage, is there a recommended/nominal range that’s even smaller than that? I’m not finding any info about the differential input voltage in the Electrical Characteristics section.

The datasheet available on the TI product page appears to have last been updated in 2015. Is this the latest?

  • 0
    TI__Genius 15565 points

    Hello Will,

     "I interpret this as saying that Vin± can be from (VS-)-0.7 to (VS+)+0.7V, but the difference between the two can only be a maximum of 1V. Is that correct?" 

    This assumption is correct. No there isn't a nominal spec for the differential input voltage since under normal operation the input pins of the device are equal.

    Best,

    Hasan Babiker