AD8250 Reference Drive

Hi All,

I am planning to use AD8250 as a part of ADC front end along with the AD8421 and AD8475. I get what i expected from AD8421 and AD8475 but not from AD8250 so far. I use the exact differential output scheme in AD8250s datasheet (page 20). Both in simulation and on board i get the same result which is the output offset voltage of AD8250; it is not anywhere near Vref.

I am attaching the simulation file (LTSpice), any suggestion?

Thank you in advance.

AI.asc.zip
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    •  Analog Employees 
    on Aug 2, 2018 2:50 PM
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

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    EZ Admin
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  • 0
    •  Analog Employees 
    on Aug 2, 2018 2:50 PM
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    EZ Admin
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