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LM10 Reference...

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.

--
Bill Sloman, Nijmegen
Reply to
bill.sloman
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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

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
     It\'s what you learn, after you know it all, that counts.
Reply to
Jim Thompson 

--
So you got some work? 



























Sorry... just too good to resist. :)
Reply to
John Fields

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.

--
Bill Sloman, Nijmegen
Reply to
bill.sloman

But "my baby" is ALWAYS best ;-)

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
     It\'s what you learn, after you know it all, that counts.
Reply to
Jim Thompson

[snip]

Sno-o-o-ort ;-)

...Jim Thompson

-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | |

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| 1962 | It's what you learn, after you know it all, that counts.

Reply to
Jim Thompson

We may think so, Jim, but most of us notice that other people are less than convinced.

--
Bill Sloman, Nijmegen
Reply to
bill.sloman

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).

--
Bill Sloman, Nijmegen
Reply to
bill.sloman

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.

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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

Reply to
John Larkin 

--
Churlish you are, then.
Reply to
John Fields

Hmm, that's 75kV/us slewing.

--
 Thanks,
    - Win
Reply to
Winfield Hill

We'll have you performing as if you were an experienced straight man any decade now ...

--
Bill Sloman, Nijmegen
Reply to
bill.sloman 

--
BTDT...
Reply to
John Fields

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
Reply to
Michael A. Terrell

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?

--
Bill Sloman, Nijmegen
Reply to
bill.sloman

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
Reply to
Michael A. Terrell 

--
"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?
Reply to
John Fields

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?

--
Bill Sloman, Nijmegen
Reply to
bill.sloman

Whatever made you think I was referring to homosexuality?

--
Bill Sloman, Nijmegen
Reply to
bill.sloman

--- 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.

-- John Fields Professional Circuit Designer

Reply to
John Fields

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