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Question about transistor matching

 
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markty



Joined: 15 Dec 2004
Posts: 60
Helped: 2
Post16 Dec 2004 2:47   Question about transistor matching
Hi guys,

I read Mr. PELGROM's paper, but i think it is hard to understand.
Can someone give me an example about how to decide the size
of transistor to get a 1% mismatch?

thanks!

best regards,
mark
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IanP



Joined: 05 Oct 2004
Posts: 6347
Helped: 1505
Location: West Coast
Post16 Dec 2004 2:53   Re: Question about transistor matching
To match a pair you create a table or diagram of Ic versus Ube. If at any point Ic at the same Ube differs by more than 1% you have >1% mismatch..

Last edited by IanP on 16 Dec 2004 5:51; edited 1 time in total
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james_su



Joined: 14 Dec 2004
Posts: 4
Helped: 1
Post16 Dec 2004 5:47   Question about transistor matching
The IEEE paper:

Optimizing mos transistor mismatch

Jan 1998
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markty



Joined: 15 Dec 2004
Posts: 60
Helped: 2
Post16 Dec 2004 6:15   Question about transistor matching
to james_su:

Thanks for the help. But i do not have an IEEE xplore account.

Can you give me a free download link?

Best regards,
Mark
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uladz55



Joined: 11 Mar 2004
Posts: 161
Helped: 6
Post17 Dec 2004 2:37   Re: Question about transistor matching
Hi,
here is this paper

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