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Hi I am working on a design which has  LT6106 current sense amplifier where the VCC is 5V and IN  and IN- is 12V. Device is working now and I want to understand if the internal ESD structure of the IC are specialised enough for this application a

Hi I am working on a design which has  LT6106 current sense amplifier where the VCC is 5V and IN+ and IN- is 12V. Device is working now and I want to understand if the internal ESD structure of the IC are specialised enough for this application as when Input voltage is higher than the supply voltage.  If not can i have a drop in replacement of that IC which are having such capability as i cant change the design now. opamp

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  • Hi Manoj, 

    According the Absolute Maximum ratings of the LT6106, the inputs need to be kept within the supplies. 

    The AD8211 is pin compatible and looks like it could work in your configuration. Unlike the LT6106 though, its gain is fixed to 20V/V. What current are you trying to sense? Could you provide more details about your application so I can check to see whether this device suits your purposes?

    Thanks, 

    Kris

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  • Hi Manoj, 

    According the Absolute Maximum ratings of the LT6106, the inputs need to be kept within the supplies. 

    The AD8211 is pin compatible and looks like it could work in your configuration. Unlike the LT6106 though, its gain is fixed to 20V/V. What current are you trying to sense? Could you provide more details about your application so I can check to see whether this device suits your purposes?

    Thanks, 

    Kris

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