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ISO124: ISO124 POWER SUPPLY AND INPUT VOLATAGE

SATOSHI NISHIKUBO
Prodigy 30 points
Part Number: ISO124
Other Parts Discussed in Thread: ISO224

Tool/software:

CAN I USE ±10V INPUT SIGNAL UNDER  the CONDITION?

+VS1 :5V

-VS1 :-5V

+VS2 :+5V

-VS2 :-5V

±VS1　AND  ±VS2  are isolated.

  • 0
    TI__Guru**** 181521 points

    Hi Satoshi,

    No, you cannot.  The ISO124 needs overhead on the power rails in order to work properly.  You can use +/-12V for the VSx to get the full +/-10V input range.  You could also consider using the ISO224 which can accept the +/-10V input using a single 5V supply on the high and low side.