Saturday, November 21, 2020

Revised my LM321/358/324 transitor models

The best variant turned out to be (v.I) :

This v. is couple of times faster and with higher DC voltage gain than the actual LM324 , uses a different biasing circuitry and modified output stage . . . as it turned out it is difficult to get the ® d/s provided equivalent circuit to have the stability otherwise

. . . the 100Ω resistors seemed to improve the common mode rejection at the time they were added . . . however there has been modifications since -- at the moment there's no time to validate the effect for the final v. . . .


 some tests :

. . . compared to the second best variant (v.JI) and to the macro-model of the Op Amp in question . . .




 [Eop]

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