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Need help to evaluate op amp consumption on ADA4898-2

Hello,

I would want to know what is the method to evaluate the power consumption of preamp stage. I use a low noise amplifier (ADA4898-2 which is used +6V/-6V supply rails), and I'm not sure to understand the graph figure 4 on the datasheet : Does it means that the ADA4898 could support 3W@30°C for the ADA4898-2, does it means that for the ADA4898-2 that the power dissipation should be divide by 2 to know the power dissipation of one op amp ?

How can I do to estimate the consumption of a stage ? Does it exist a method ?

I hope that someone could help me.

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  • Hello,

    So sorry for my late anwser. See the screenshot for the example...

    Could you please told me what is the method to evaluate the consumption of the op amp and of the all stage ?

    (Consider the input is a sqare waveform @ 350kHz).

    Thanks a lot for your help.

Reply
  • Hello,

    So sorry for my late anwser. See the screenshot for the example...

    Could you please told me what is the method to evaluate the consumption of the op amp and of the all stage ?

    (Consider the input is a sqare waveform @ 350kHz).

    Thanks a lot for your help.

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