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AD8436 and AD536A Ltspice simulation

Mina

Hi,

I'm simulating the 2 true RMS converter  the AD536A  and the AD8436.

For the same input signal I don't have the same output. Could anyone tell me why I didn't find the same output ?

AD536A.ascAD8436.asc

Best  regards,

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  • 0
    •  Analog Employees 
    on Oct 1, 2021 2:51 PM

    Hi Mina,

    I was able to get almost the same result for AD536A and AD8436 using the typical application circuit on the datasheet (Figure 13 for AD536A and Figure 21 for AD8436). I also tried using your values and still got the same result.
    Could you share to us the output that you got?
    Also, what is the use of the 10kohm resistor?

    That is all for now.

    Best regards,
    Sham

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  • 0
    •  Analog Employees 
    on Oct 1, 2021 2:51 PM

    Hi Mina,

    I was able to get almost the same result for AD536A and AD8436 using the typical application circuit on the datasheet (Figure 13 for AD536A and Figure 21 for AD8436). I also tried using your values and still got the same result.
    Could you share to us the output that you got?
    Also, what is the use of the 10kohm resistor?

    That is all for now.

    Best regards,
    Sham

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