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hr_rezaee
Joined: 06 Oct 2004
Posts: 863
Helped: 88
Location: Iran-Mashhad
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 25 Dec 2007 20:53 about step change in the output of SC circuits |
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Dear All
Hi
I need some papers or books about step change in the output of SC circuit (for example MDAC of pipeline ADC) in the direction of opposite to its final value.
I need proof of it.
regards
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n1cm0c
Joined: 05 Sep 2006
Posts: 176
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| 08 Feb 2008 14:18 Re: about step change in the output of SC circuits |
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The step response changes first in the opposite direction due to the feed-forward zero through the feedback capacitors...
Just imagine a bit... assume that the OTA core is slow, it can't move as fast as the input step. The edge of the input step couples directly to the ouput node through the feedback network of capacitors, with no signal inversion.
As the OTA wakes up and starts to respond (at the speed it can), it'll drive the output node, with signal inversion.
The response at the ouput will showa jump to one direction (near instantaneous) and then it'll go in the other direction.
I think the ee240 class notes cover this (boser at berkeley).
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banihashemi
Joined: 25 Dec 2005
Posts: 8
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| 10 Feb 2008 15:04 Re: about step change in the output of SC circuits |
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| A good book is "Analog MOS integrated Circuits for Signal Processing" by Gabor C. Temes
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hr_rezaee
Joined: 06 Oct 2004
Posts: 863
Helped: 88
Location: Iran-Mashhad
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| 11 Feb 2008 15:24 Re: about step change in the output of SC circuits |
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| banihashemi wrote: |
| A good book is "Analog MOS integrated Circuits for Signal Processing" by Gabor C. Temes |
Hi
thanks
in "chapter 7 : Nonideal effects in switched capacitor circuits" there is no discussion about this effect (just clock feedthrough).
Can you tell me which page?
thanks
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safwatonline
Joined: 19 Nov 2005
Posts: 1347
Helped: 164
Location: EGYPT
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| 13 Feb 2008 11:12 about step change in the output of SC circuits |
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check this paper
Process-insensitive low-power design of switched-capacitor integrators
Naiknaware, R. Fiez, T.S.
Maxim Integrated Products, Hillsboro, OR, USA;
This paper appears in: Circuits and Systems I: Regular Papers, IEEE Transactions on [Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on]
Publication Date: Oct. 2004
Volume: 51, Issue: 10
On page(s): 1940- 1952
ISSN: 1549-8328
INSPEC Accession Number: 8157528
Digital Object Identifier: 10.1109/TCSI.2004.835666
Posted online: 2004-10-18 08:48:29.0
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n1cm0c
Joined: 05 Sep 2006
Posts: 176
Helped: 22
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| 13 Feb 2008 12:57 Re: about step change in the output of SC circuits |
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| safwatonline wrote: |
check this paper
Process-insensitive low-power design of switched-capacitor integrators
Naiknaware, R. Fiez, T.S.
Maxim Integrated Products, Hillsboro, OR, USA;
This paper appears in: Circuits and Systems I: Regular Papers, IEEE Transactions on [Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on]
Publication Date: Oct. 2004
Volume: 51, Issue: 10
On page(s): 1940- 1952
ISSN: 1549-8328
INSPEC Accession Number: 8157528
Digital Object Identifier: 10.1109/TCSI.2004.835666
Posted online: 2004-10-18 08:48:29.0 |
interesting, can you upload it ?
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safwatonline
Joined: 19 Nov 2005
Posts: 1347
Helped: 164
Location: EGYPT
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| 13 Feb 2008 13:14 Re: about step change in the output of SC circuits |
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here is the file,
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