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srikanth1986
Joined: 06 Aug 2008
Posts: 10
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 13 Aug 2008 12:58 Voltage level shifters |
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| Can someone gimme a link to read about voltage level shifters using CMOS or suggest a book to read? Or can someone give example circuits?
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xulfee
Joined: 27 May 2008
Posts: 230
Helped: 25
Location: Pakistan
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| 15 Aug 2008 12:32 Voltage level shifters |
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| check out tutorial for max232,i think it may work
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arman_arian2005
Joined: 20 Oct 2006
Posts: 33
Helped: 3
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| 15 Aug 2008 17:11 Re: Voltage level shifters |
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| Refer to Razavi, "Analogue CMOS design"
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drabos
Joined: 03 Jan 2006
Posts: 432
Helped: 27
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| 15 Aug 2008 17:22 Voltage level shifters |
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the simplest level shifter is the CMOS inverter 
For more advanced solutions you can check every book about I/O design
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ytliang
Joined: 04 Aug 2008
Posts: 61
Helped: 5
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| 20 Aug 2008 10:23 Voltage level shifters |
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Source Followers are the simplest (I think) level shifters. It simply shifts your input by Vgs.
Source Follower can be found in any Analog IC books.
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animeshjn
Joined: 13 Jan 2006
Posts: 24
Helped: 5
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| 26 Aug 2008 11:12 Voltage level shifters |
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| Inverter can be a level shifter if you are going from High voltage domain to low voltage domain. But will not work for low to high accurately even with skewing. For low to high level converter refer Weste Harris: CMOS VLSI design
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elrayes
Joined: 03 Jun 2008
Posts: 14
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| 26 Aug 2008 20:50 Re: Voltage level shifters |
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| Actually if you are looking for a DC level shifter for offset setting you can use a clamp circuit using a diode and capacitor either to shift the signal offset downwards or upwards, i think you don't need a CMOS circuit for this application.
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