ADCMP561 spice model

Analog Devices makes some nice PECL comparators, but the data sheets
are old and iffy, and there don't seem to be any Spice models. It was
raining and snowing and I couldn't go skiing, so I did a behavioral
model. I plan to use one of these to make a pretty good 500 MHz
oscillator, so I wanted to get it mostly right. Jim's TANH thing is a
nice way to make a saturating stage. The open-emitter outputs could be
added with a couple of diodes, but I don't need that just now.

(I did fill out an ADI form, noting that the ADCMP561 data sheet is
rev 0, from 2003, and has obvious errors and omissions. They responded
by inviting me to fix it, presumably for free.)


https://dl.dropboxusercontent.com/u/53724080/Parts/Comparators/ADCMP561.asc

On Wed, 24 Dec 2014 21:44:12 -0800, John Larkin
<jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:

>
>
>Analog Devices makes some nice PECL comparators, but the data sheets
>are old and iffy, and there don't seem to be any Spice models. It was
>raining and snowing and I couldn't go skiing, so I did a behavioral
>model. I plan to use one of these to make a pretty good 500 MHz
>oscillator, so I wanted to get it mostly right. Jim's TANH thing is a
>nice way to make a saturating stage. The open-emitter outputs could be
>added with a couple of diodes, but I don't need that just now.
>
>(I did fill out an ADI form, noting that the ADCMP561 data sheet is
>rev 0, from 2003, and has obvious errors and omissions. They responded
>by inviting me to fix it, presumably for free.)
>
>
>https://dl.dropboxusercontent.com/u/53724080/Parts/Comparators/ADCMP561.asc
>
>

Are you using my B_DIFF_PAIR.pdf model?  (On the Device Models &
Subcircuits Page of my website.)  I use that extensively as front-ends
for all kinds of OpAmps, Comparators and _occasionally_ ECL/PECL.

Merry Christmas and/or Happy Hanukkah!  (We celebrate both ;-)

Getting all 19 of the family members coordinated with colleges and
jobs, and in town, we will do our combined celebration on January
10... the judge must be available to sign warrants, etc., until then
;-)
		
                                        ...Jim Thompson
-- 
| James E.Thompson                                 |    mens     |
| Analog Innovations                               |     et      |
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| San Tan Valley, AZ 85142     Skype: skypeanalog  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
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