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AD8218 spice model is messed up.

Yeah true, but for laboratory characterization?

I don't think I I've ever had a pulse generator that bad ;-)

--
"Design is the reverse of analysis" 
                   (R.D. Middlebrook)
Reply to
Fred Abse
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Another inconsistency. The data sheet shows some peaking in the AC curves, but the model doesn't ;-)

The ADI model, in spite of all the sections, looks like an ideal OpAmp.

...Jim Thompson

--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   Skype: Contacts Only  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
I love to cook with wine.     Sometimes I even put it in the food.
Reply to
Jim Thompson

Change my OpAmp subcircuit params call to...

PARAMS: GBW=0.2 PM=60

Then it'll match the ADI model, but not the ADI data sheet >:-}

...Jim Thompson

--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   Skype: Contacts Only  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
I love to cook with wine.     Sometimes I even put it in the food.
Reply to
Jim Thompson

Doesn't change much, AFAICS.

Comparison posted to a.b.s.e.

--
"Design is the reverse of analysis" 
                   (R.D. Middlebrook)
Reply to
Fred Abse

You changed it in the wrong place, see..

From: Jim Thompson Newsgroups: alt.binaries.schematics.electronic Subject: Re: AD8218 model from SED, comparison of transient response, ADI and two JT versions. Date: Mon, 26 Aug 2013 09:57:20 -0700 Message-ID:

Study up on "params" in subcircuits >:-} ...Jim Thompson

--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   Skype: Contacts Only  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
I love to cook with wine.     Sometimes I even put it in the food.
Reply to
Jim Thompson

Yes, I did.

That's my Berkeley 3f habits. no params in Berkeley 3.

Mea culpa.

Same as the ADI model, now.--

Yes,

"Design is the reverse of analysis" (R.D. Middlebrook)

Reply to
Fred Abse

Good! However, neither now match the data sheet regarding GBW. ...Jim Thompson

--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   Skype: Contacts Only  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
I love to cook with wine.     Sometimes I even put it in the food.
Reply to
Jim Thompson

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