schematic confusion

Discussion in 'The Projects Forum' started by alza3em_94, Mar 12, 2015.

  1. alza3em_94

    Thread Starter New Member

    Mar 12, 2015
    1
    0
    Hello guys,

    I want to implement this accelerometer into my pcb design but I am confused by its schematic. I have the evaluation board for it which can be seen in the layout file.
    Why are there two acce. blocks U1 and U2 while there is only one in the eval board?

    Much appreciated
     
  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,969
    744
    maybe its to boost the current out, both chips are in parallel.
     
  3. bertus

    Administrator

    Apr 5, 2008
    15,646
    2,344
    Hello,

    It can be that the board is universal, to use two different versions of the chip.
    The U1 has pin 15 to gound and U2 has not that connection.
    I think only one is installed.

    Bertus
     
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