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Thread: Sub-threshold voltage supply for IoT

  1. #1
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    Question Sub-threshold voltage supply for IoT

    I am looking for Big companies which provide R&D in the sub-threshold voltage supply for purposes of IoT.
    Does anybody know such companies?

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  2. #2
    Admin Daniel Nenni's Avatar
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    Just our of curiosity, why do you ask?

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    I am very curious about this power mode of operation so i am looking for new ASIC design opportunities in this field. I prefer to work on things which are interesting for me, this is my credo.
    But i am not sure that anyone in the industry is close enough to represent sub-threshold chips to market. That is why i ask.

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  4. #4
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    Intel demoed solar powered near-threshold Atoms a few years back if you remember.

    Just looking around: Ambiq Micro – The low power revolution starts here -- but they are not a big company I guess.

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  5. #5
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    Intel's experiments do not look like a serious try: they just lowered the supply voltage below normal, and that revealed inoperability of their RAM+Cache. It seems they didn't actually want to make a commercial product.
    Anyway the near-threshold and the sub-threshold voltages are quite different from each other, because a power consumption may differ by a number of decades in both of this power modes. So, the sub-threshold mode is much more suitable for IoT and energy harvesting applications than near-threshold voltage supply.
    But, thank You anyway. I never heard about Ambiq Micro.

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