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  1. #1
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    Can I have a large L in amplifier design?

    Hi All,

    If I am going to design an op amp, with a tiny current to get low power consumption design, the calculated w/l would be very small, can I use like 1um/40um for w/l? will there be some drawbacks?

    I saw some threads that is saying that we can use a large L for designing large resistor, but I am not sure if I can use it as a transistor.

    Thanks so much!

    •   Alt20th March 2017, 22:29

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  2. #2
    Advanced Member level 5
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    Re: Can I have a large L in amplifier design?

    Is it too small W/L ratio ?? There should be DFM rules from point of foundry process.



    •   Alt21st March 2017, 00:16

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  3. #3
    Newbie level 1
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    Re: Can I have a large L in amplifier design?

    How about using stacked device?
    TSMC 40nm, max length is only 10um.



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