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AMC1200: AMC1200 - the MIN and MAX of RIN "Differential input resistance"

Dice-K
Mastermind 7610 points
Part Number: AMC1200


Hello,
I have a question about AMC1200.

Please teach me the MIN and MAX of RIN "Differential input resistance".

25C        28kohm±*% ?
-40～105C  28kohm±*% ?

I attach a file.

AMC1200_Error_calculation.pdf

For confirmation of "R2 << Rin".

Regards,
Dice-K

  • 0
    TI__Guru**** 181641 points
    Hi Dice-K,

    Rin is not measured during production to a MIN/MAX specification which is why only a typical value is given; its value is not temperature dependent. The Rin value is based on the Cdiff and Fclk as noted in Figure 31. Lot to lot variations in Cdiff and Fclk can lead to a variation on Rin of approximately +/-5%.