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 MOM or MIM capacitor to use in SAR ADC 

Last post Mon, Jul 8 2013 12:58 AM by VKhlyupin. 1 replies.
Started by Ricardo Alves 19 Jun 2013 06:05 AM. Topic has 1 replies and 997 views
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  • Wed, Jun 19 2013 6:05 AM

    MOM or MIM capacitor to use in SAR ADC Reply

    Can anybody tell me which capacitor (MOM or MIM) is better to use in a SAR ADC? And what are their main differences in terms of parasitic and mismatch? 

    Thanks in advance.

    Best regards,

    Ricardo Alves 

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    • Post Points: 20
  • Mon, Jul 8 2013 12:58 AM

    • VKhlyupin
    • Not Ranked
    • Joined on Fri, Jul 5 2013
    • Posts 9
    • Points 120
    Re: MOM or MIM capacitor to use in SAR ADC Reply

    In terms of parasitic an mismatch MOM probably better. But commonly used are MIM's.

    Probably it's first becauce to have same capacitance for MOM requere much mor area that for MIM, and second it's because MIM have more precice and reproducible technology that MOM.

    So I suggest  you to use MIM.

    • Post Points: 5
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Started by Ricardo Alves at 19 Jun 2013 06:05 AM. Topic has 1 replies.