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ADC16DV160: About absolute maximum rating of VIN Pins

Masanori Tachibana
Genius 5350 points
Part Number: ADC16DV160

Hello support team,

I have a question about the absolute maximum rating of ADC16DV160.
The rating of VIN Pins is "- 0.3 V to (VA1.8 + 0.3 V)", but there is a comment of "Not to exceed 2.35 V". Just to be sure, could you teach me the meaning of this comment?

I think as follows.
The maximum rating of VA1.8 is 2.35 V. So, in calculation, the maximum rating of VIN Pins will be 2.35 V + 0.3 V = 2.65 V.
But the maximum rating of VIN Pins is 2.35 V even if the voltage of VA1.8 is 2.05 V or more.
Is my understanding correct?

Best regards,
M. Tachibana

  • 0
    TI__Mastermind 44680 points

    Hi Tachibana-san

    Your understanding is correct.

    The absolute maximum positive level on the VIN pins is stated to be VA1.8+0.3V, but must not exceed 2.35V.

    Even though the VA1.8 voltage can be as high as 2.35V, VIN must still not exceed 2.35V so in the cases where VA1.8 is higher than 2.05V VIN is limited to a maximum voltage of +2.35V.

    Please also rate that the normal operating range for VDR and VA1.8 is 1.7V to 1.9V. Device reliability and performance may be degraded if these supplies are operated outside this range.

    I hope this is helpful.

    Best regards,

    Jim B

  • 0 in reply to Jim Brinkhurst1
    Genius 5350 points

    Hello Jim-san,

    Thank you for your kind explanation.
    I understood it.

    Sincerely,
    M. Tachibana