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MAX44245 simulation problem

Category: Software
Product Number: MAX44245
Software Version: LTspice XVII(x64)

I used LTspice to design an oscillator using the LT6012 Op-Amp only to find that there's no stock available anywhere.  The MAX44245 seemed to be a good sub and it has a model in the standard LTspice components library.  However, the simulation runs a very long time without completing where the LT6012 part model runs very quickly without a problem.  I need to find a good sub for the LT6012 that is:  (1) spec'd. for +/-15v supplies, (2) is available in distributor stock, and, (3) has a model that will run in LTspice. 

Sinewave Osc 1-1.asc