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ad8055 as a voltage follower

Product Number: AD8055

Hi,

I am considering using a high output drive current  OP AMP as a voltage follower. I found that AD8055 meets the current requirement but in its datasheet, there's no unity-gain stable mentioned.

I wondering if AMP without unity-gain stable could be used as a voltage follower.

Thanks in advance.

Top Replies

    •  Analog Employees 
    •  Super User 
    Oct 13, 2023 +1 verified

    Hi  ,

    Good day. Considering the open loop gain response and the phase margin of the op-amp, we can say that the op-amp is stable at a gain of 1 since it has a positive phase margin (this was based…

    •  Analog Employees 
    •  Super User 
    Oct 13, 2023 +1 verified

    Hi  ,

    There are some cases that amplifiers can be used as voltage follower without unity-gain stable, but for AD8055 case, it is unity-gain stable which can be seen in this plot. 

    Hope this information…