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LM10 Reference...

Jim said:
Of course, at my age that's just yesterday ;-)


This one. However a lot of those faster devices were cantankerous as
hell to keep from oscillating... the MC1650/51 never was... and I
designed it ~1965.

I certainly had enough trouble sorting out other people boards where
LM311's were cantankerous, but the first Am685 I ever designed onto a
board - back in 1975 - never showed any sign of oscillating, and the
AD96685s never gave us any trouble in 1989 (though at least one of the
boards did turn out to be virtually useless because the printed circuit
department "knew" that the order of the four inner layers of the board
didn't matter, and didn't pass on my instructions on the build-up to
the manufacturer).

I personally checked out the layouts around every comparator on every
one of our (three) double extended Eurocards, but I don't remember
having to ask for more than minor nit-picking changes which could be
done on the spot.

There are a few simple rules for laying out fast comparators - starting
with "keep the outputs well away from the inputs" - and you don't have
to learn them from experience.
 
J

Jim Thompson

Jan 1, 1970
0
I certainly had enough trouble sorting out other people boards where
LM311's were cantankerous, but the first Am685 I ever designed onto a
board - back in 1975 - never showed any sign of oscillating, and the
AD96685s never gave us any trouble in 1989 (though at least one of the
boards did turn out to be virtually useless because the printed circuit
department "knew" that the order of the four inner layers of the board
didn't matter, and didn't pass on my instructions on the build-up to
the manufacturer).

I personally checked out the layouts around every comparator on every
one of our (three) double extended Eurocards, but I don't remember
having to ask for more than minor nit-picking changes which could be
done on the spot.

There are a few simple rules for laying out fast comparators - starting
with "keep the outputs well away from the inputs" - and you don't have
to learn them from experience.

I had pretty much put the MC1650/51 out of my mind, but I'm now musing
how fast it might be on a modern PECL process.

...Jim Thompson
 
J

John Fields

Jan 1, 1970
0
nobody has ever worked out how to avoid hiring the occasional
plausiable idiot.

---
So you got some work?



























Sorry... just too good to resist. :)
 
John said:
Surely not the one where people are gracious, grateful, or polite.

Come off it - Jim was making an over-the-top claim that he must have
known to be absurd, and I just called him on it, in a matching
over-the-top style.

You don't react to exaggerated claims with courtly politieness - that
would be sycophantic.
And this is *Jim Thompson* I'm reacting to - the man who was reporting
me to the modern version of the committee for un-American activities a
few months ago.

I'm happy to be gracious and polite when he corrects me in an error
(see item 8 in ths thread Fri, Mar 24 2006 6:00 pm ), but this isn't
appropriate when he is putting forward an erroneous opinion.
 
J

Jim Thompson

Jan 1, 1970
0
Come off it - Jim was making an over-the-top claim that he must have
known to be absurd, and I just called him on it, in a matching
over-the-top style.

You don't react to exaggerated claims with courtly politieness - that
would be sycophantic.
And this is *Jim Thompson* I'm reacting to - the man who was reporting
me to the modern version of the committee for un-American activities a
few months ago.

I'm happy to be gracious and polite when he corrects me in an error
(see item 8 in ths thread Fri, Mar 24 2006 6:00 pm ), but this isn't
appropriate when he is putting forward an erroneous opinion.

But "my baby" is ALWAYS best ;-)

...Jim Thompson
 
No such luck. I'm perfectly plausible, but since I'm not an idiot, I
don't have the option of re-inventing my story to suit the audience.
Sorry... just too good to resist. :)

You have so few opportunities to exercise your wit that it would be
churlish to point out that I'm not an idiot (though you may lack the
wit to appreciate this).
 
J

John Larkin

Jan 1, 1970
0
I had pretty much put the MC1650/51 out of my mind, but I'm now musing
how fast it might be on a modern PECL process.

...Jim Thompson


ADI has some nice SiGe comparators, with prop delays of 150 ps and 35
ps edges. And they can stand big diff inputs without zenering, which
is handy.

http://www.analog.com/en/prod/0,,759_776_ADCMP573,00.html


Dirt cheap, too.

One of our gadgets uses one of these to drive a Hittite 20 GHz
distributed amplifier, so we wind up with 6 volts of swing in 80 ps or
something insane like that.


John
 
J

John Fields

Jan 1, 1970
0
No such luck. I'm perfectly plausible, but since I'm not an idiot, I
don't have the option of re-inventing my story to suit the audience.


You have so few opportunities to exercise your wit that it would be
churlish to point out that I'm not an idiot (though you may lack the
wit to appreciate this).
 
W

Winfield Hill

Jan 1, 1970
0
John Larkin wrote...
ADI has some nice SiGe comparators, with prop delays of 150 ps and
35 ps edges. And they can stand big diff inputs without zenering,
which is handy.
http://www.analog.com/en/prod/0,,759_776_ADCMP573,00.html
Dirt cheap, too.

One of our gadgets uses one of these to drive a Hittite 20 GHz
distributed amplifier, so we wind up with 6 volts of swing in 80 ps
or something insane like that.

Hmm, that's 75kV/us slewing.
 
M

Michael A. Terrell

Jan 1, 1970
0
We'll have you performing as if you were an experienced straight man
any decade now ...


Try it yourself, Bill. You might even enjoy being a straight man.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
Michael said:
Try it yourself, Bill. You might even enjoy being a straight man.

I've been straight for as long as I can remember. It has its enjoyable
moments. What makes you think that it is a matter of choice?
 
M

Michael A. Terrell

Jan 1, 1970
0
I've been straight for as long as I can remember. It has its enjoyable
moments. What makes you think that it is a matter of choice?


Reading comprehension, Bill. Work on it. A "Straight man" is half of
a comedy team. What did you think we are talking about?


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
J

John Fields

Jan 1, 1970
0
I've been straight for as long as I can remember. It has its enjoyable
moments. What makes you think that it is a matter of choice?
 
Michael said:
Reading comprehension, Bill. Work on it. A "Straight man" is half of
a comedy team. What did you think we are talking about?

Reading comprehension, Michael. I can write funny lines, but I can't
deliver them. My wife - like every other high-profile academic - is an
experienced public speaker who really can time a joke.

Need I say more?
 
John said:
---
"Straight man", as you originally used it, Bill, and as Michael
replied, in kind, refers to the member of a comic duo who's job it
is is to set up the punch lines. Your reference to homosexuality is
humorous, why?

Whatever made you think I was referring to homosexuality?
 
J

John Fields

Jan 1, 1970
0
Whatever made you think I was referring to homosexuality?

---
Your choice of words and phrasing, of course.

Are you denying that your innuendo was sexual?

Nowadays, in the vernacular, homosexuals are referred to as 'gay'
and heterosexuals as 'straight', as you should be very well aware
of.

1. Your reference to being straight for as long as you can remember
instead of being a "straight man" for as long as you can remember
and your having used "straight man" in reference to comedy, earlier,
rules out the possibility that you were using "straight" as anything
other than a homosexual reference.

2. Being straight having its enjoyable moments relates to sexuality
much more easily than being a "straight man" does, particularly in
the context in which you chose to place it.

3. One has a choice in deciding on whether or not to be a "straight
man". I don't think that choice is available to either a straight
man or to a gay man.
 
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