.DC Spice Analysis Quirk... Anyone Know How to Do This?

Question

I want to do a DC sweep (.DC):-3.6V to -1V (step size = 2.6V)-1V to +2V (step size = (100/3)mV)+2V to +7.2V (step size = 5.2V)(Lots of data points around the "knee" :-)That makes a list that PSpice barfs on, claiming "list too long".Anyone know some gimmicks to get around that limitation?Thanks!		                                        ...Jim Thompson-- | James E.Thompson, CTO                            |    mens     || Analog Innovations, Inc.                         |     et      || Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    || Phoenix, Arizona  85048    Skype: Contacts Only  |             || Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  || E-mail Icon at  |    1962     |             I love to cook with wine.     Sometimes I even put it in the food.

Jim Thompson · Accepted Answer

This works, but a klutz...Sim -3.6V to -1V (step size = 2.6V), export data to a .dat fileSim -1V to +2V (step size = 40mV), export data to a .dat fileSim +2V to 7.2V (step size = 5.2V)Import data from first two sims to third sim.Highlight waveform name, copy, then paste into a text file, result isa list of I/O pairs.See... 		                                        ...Jim Thompson-- | James E.Thompson, CTO                            |    mens     || Analog Innovations, Inc.                         |     et      || Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    || Phoenix, Arizona  85048    Skype: Contacts Only  |             || Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  || E-mail Icon at  |    1962     |                   The only thing bipartisan in this country is hypocrisy

Jasen Betts · Answer

use two voltage sources that add to give the desired effect in series?--- news:// - complaints:  ---

Jim Thompson · Answer

wrote:The problem was the need for different step sizes in differentregions.  Reason: Feeding data to another application that can handleonly 100 total data points."Solved" as posted at...Subject: Re: .DC Spice Analysis Quirk... Anyone Know How to Do This?Date: Mon, 03 May 2010 17:31:10 -0700Message-ID: 		                                        ...Jim Thompson-- | James E.Thompson, CTO                            |    mens     || Analog Innovations, Inc.                         |     et      || Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    || Phoenix, Arizona  85048    Skype: Contacts Only  |             || Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  || E-mail Icon at  |    1962     |                   The only thing bipartisan in this country is hypocrisy

.DC Spice Analysis Quirk... Anyone Know How to Do This?

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