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AD8606 AD8661_clamp diode

Category: Hardware
Product Number: AD8606,AD8661


I would like to use AD8606 or AD8661 as a comparator because of some reason ( delivery and so on).

But, if these devices have a clamp diode, I can not use these as a comparator.

Are these devices have a clamp diode between +input and -input?

(For example, below D1 and D2)

Please let me know your advice.



  • Hi Teli,

    Good day!
    I had a quick look at the datasheet of both parts you mentioned, there's no mention of the ESD diodes between the inputs. But checking the abs max spec, the Differential Input Voltage corresponds with the supply, this means that these parts most likely do not have the ESD diodes you mentioned (But I'm going to double check to be sure).

    But using it as a comparator or in an open loop configuration means that the parameters found on the spec table will not be accurate as these are specified in closed-loop configuration.
    Have you tried looking at our comparator portfolios

    Thanks and I hope this helps.

    Best Regards,

  • Hello Dann

    Thank you for your answer.

    I am going to look at  your comparator portfolios though I might use an open-loop configuration because of a delivery issue and our stock.

    I understand that an open-loop configuration will not accurate as the specification.