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Design >> High-Speed I/O Design >> slew rate and transistion time
https://designers-guide.org/forum/YaBB.pl?num=1167906095

Message started by dandelion on Jan 4^th, 2007, 2:21am

Title: slew rate and transistion time
Post by dandelion on Jan 4^th, 2007, 2:21am

Hi,
In some product, especiall the interface circuit it gives the transistion time(rise/fall time) spec, some gives the slew rate spec, and some gives them both.

As my understanding, they descrbe the same things.So,would anyone pls. explains to me in what cases to define them in the spec?

Thanks

Title: Re: slew rate and transistion time
Post by topquark on Jan 4^th, 2007, 7:41am

slew rate is expressed in V/s and in case of amplifiers, one has to specify the i/p (sine wave Vpp, freq etc..)
and the the O/P load. In case of I/Os we just need to know the supply voltage and o/p load, when talking of rise/fall times.