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random electron
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 Posted:
Mon Sep 26, 2005 12:35 am Post subject:
What is the fastest ic oneshot? |
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tia
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mike
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| Posted:
Mon Sep 26, 2005 4:05 pm Post subject:
Re: What is the fastest ic oneshot? |
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random electron wrote:
tunnel diode. |
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Boris Mohar
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| Posted:
Mon Sep 26, 2005 4:35 pm Post subject:
Re: What is the fastest ic oneshot? |
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On Mon, 26 Sep 2005 04:05:29 -0700, mike <spamme0@netscape.net> wrote:
| Quote: | random electron wrote:
tia
tunnel diode.
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Good one but it is not an IC
Regards,
Boris Mohar
Got Knock? - see:
Viatrack Printed Circuit Designs (among other things) http://www.viatrack.ca
void _-void-_ in the obvious place
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William P. N. Smith
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| Posted:
Mon Sep 26, 2005 10:45 pm Post subject:
Re: What is the fastest ic oneshot? |
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random electron <fake@fake.net> wrote:
Define 'fastest'. You might get a really narrow pulse one-shot by
wiring some ECL thru a short delay line, and it's propagation delay
ought to be low...
YWIA |
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mike
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| Posted:
Tue Sep 27, 2005 12:35 am Post subject:
Re: What is the fastest ic oneshot? |
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Boris Mohar wrote:
| Quote: | On Mon, 26 Sep 2005 04:05:29 -0700, mike <spamme0@netscape.net> wrote:
random electron wrote:
tia
tunnel diode.
Good one but it is not an IC
Ok, I'll bite. It's got substrate, diffusions, junctions, |
contacts...
It's integrated and it's a circuit...and it can be really, really fast.
One might even argue that it has zero propagation delay. ;-)
mike
| Quote: |
Regards,
Boris Mohar
Got Knock? - see:
Viatrack Printed Circuit Designs (among other things) http://www.viatrack.ca
void _-void-_ in the obvious place
|
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Fred Bartoli
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| Posted:
Tue Sep 27, 2005 8:35 am Post subject:
Re: What is the fastest ic oneshot? |
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"mike" <spamme0@netscape.net> a écrit dans le message de
news:4337D5F9.1090902@netscape.net...
| Quote: | random electron wrote:
tia
tunnel diode.
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SRD, in the ps range.
Ok, hard to set the pulse width to 1 ms, but he wanted the fastest.
--
Thanks,
Fred. |
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random electron
Guest
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| Posted:
Thu Sep 29, 2005 7:29 am Post subject:
Re: What is the fastest ic oneshot? |
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William P. N. Smith <> wrote in news:trcgj153gokc8pfpfv730q1osccueeum9q@
4ax.com:
| Quote: | random electron <fake@fake.net> wrote:
Define 'fastest'. You might get a really narrow pulse one-shot by
wiring some ECL thru a short delay line, and it's propagation delay
ought to be low...
YWIA
|
Sorry for the confusion. I'm really looking for the fastest 74123 type of
one shot. I want to use it to make short precision pulses at 10MHz. I'd
like it to have complementary outputs. I'd like it to be CMOS. I'd like it
to be temperature stable from 20F to 110F.
Regards |
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mike
Guest
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| Posted:
Thu Sep 29, 2005 2:45 pm Post subject:
Re: What is the fastest ic oneshot? |
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random electron wrote:
| Quote: | William P. N. Smith <> wrote in news:trcgj153gokc8pfpfv730q1osccueeum9q@
4ax.com:
random electron <fake@fake.net> wrote:
Define 'fastest'. You might get a really narrow pulse one-shot by
wiring some ECL thru a short delay line, and it's propagation delay
ought to be low...
YWIA
Sorry for the confusion. I'm really looking for the fastest 74123 type of
one shot. I want to use it to make short precision pulses at 10MHz. I'd
like it to have complementary outputs. I'd like it to be CMOS. I'd like it
to be temperature stable from 20F to 110F.
Regards
|
Numbers are often useful in the design process.
Short?
Precision?
Stable?
You can't be helped if you can't state what you need.
Yes, this IS my favorite pet peeve...
mike
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Wanted, Serial cable for Dell Axim X5 PDA.
Return address is VALID but some sites block emails
with links. Delete this sig when replying.
FS 500MHz Tek DSOscilloscope TDS540 Make Offer
Bunch of stuff For Sale and Wanted at the link below.
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Hal Murray
Guest
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| Posted:
Fri Sep 30, 2005 8:35 am Post subject:
Re: What is the fastest ic oneshot? |
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| Quote: | Sorry for the confusion. I'm really looking for the fastest 74123 type of
one shot. I want to use it to make short precision pulses at 10MHz. I'd
like it to have complementary outputs. I'd like it to be CMOS. I'd like it
to be temperature stable from 20F to 110F.
|
What does "short precision pulses at 10MHz" mean and or why
do you want a one shot to do that?
If all you want is short pulses at 10 MHz, consider the digital
approach - Osc package and CPLD. 100 MHz should be simple. That's
a 10 nSec pulse. Count to 10 and you have 10 MHz.
If you need to do something like turn a stream of wide pulses at
10 MHz into narrow pulses, the digital approach adds jitter. How
much can you tolerate?
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