ADA4000 comparator

Hi AD,

is the ADA4000-1 can be used as a comparator instead of amplifier and is it a dedicated op-amp to work for this kind of use (e.g comparator)

It seems that ADA4000 is highly sensitive working as a comparator and it doesn't like this non linear mode.

Moreover with a transistor on the output which could create high DV/DT for example.

thanks for your help,

Parents
  • Hi,

    I would like to extend my issue, not only on using ADA4000 as a comparator but also as an op-amp.

    I am not sure that my electrical circuit is not the root cause of my problem (I cannot provide with the system circuit) but this ADA4000 op-amp seems to have some troubles (KO) and I would like to check if this op-amp has no internal sensitivity.

    What would be the behaviour (or failure mode) of the ADA4000 op-amp with :

    - a disymetric power supply or no synchronous power supply when power on

    - ESD

    - bad or far decoupling capacitor on power supply

    - latch up phenomenae

    - any cause which could lead to a failure on the op-amp

    thanks in advance

Reply
  • Hi,

    I would like to extend my issue, not only on using ADA4000 as a comparator but also as an op-amp.

    I am not sure that my electrical circuit is not the root cause of my problem (I cannot provide with the system circuit) but this ADA4000 op-amp seems to have some troubles (KO) and I would like to check if this op-amp has no internal sensitivity.

    What would be the behaviour (or failure mode) of the ADA4000 op-amp with :

    - a disymetric power supply or no synchronous power supply when power on

    - ESD

    - bad or far decoupling capacitor on power supply

    - latch up phenomenae

    - any cause which could lead to a failure on the op-amp

    thanks in advance

Children
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