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Can I use Logic process for Analog design (Read 2455 times)

Larry_80

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Can I use Logic process for Analog design
May 02^nd, 2012, 3:31pm

Hello all,
Please i have a 0.25um tech file i want to use for Analog design. But there is a comment section like below:
PROCESS : 0.25um LOGIC SALICIDE (1P5M, 2,5V, 2.5V/3.3V)

My question is, can i use this for analog design? I am thinking its specifically just for Digital? Also i plan on using the normal 2.5V devices though my VDD is 3.3V, was wondering if this will be ok? Please i will appreciate a fst response.
Thanks a lot!

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Lex

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Eindhoven, Holland

Re: Can I use Logic process for Analog design
Reply #1 - May 3^rd, 2012, 1:51am

It is not a problem to use them for analog, as long as the foundry provides analog models for the transistors. Check the documentation.
And I wouldn't recommend using 3.3V for 2.5V transistors. It will shorten the life span of your transistors. You should convert 3.3V to 2.5V via some kind of a voltage regulator.

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Larry_80 Community Member Offline Posts: 61	Re: Can I use Logic process for Analog design Reply #2 - May 3^rd, 2012, 8:37am Thanks for your reply, very much appreciated.
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loose-electron Senior Fellow Offline Best Design Tool = Capable Designers Posts: 1638 San Diego California	Re: Can I use Logic process for Analog design Reply #3 - May 5^th, 2012, 10:30am It is single poly CMOS which should not be a problem. You will be limited in the quality of your resistors, having a silicided poly layer and R-N-Well as your options. TSMC 0.25? Probably not a problem. Models not the best, but you can survive.
Back to top	Jerry Twomey www.effectiveelectrons.com Read My Electronic Design Column Here Contract IC-PCB-System Design - Analog, Mixed Signal, RF & Medical IP Logged

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