Pos. fbk. Op. Amp. - (spice) noise

see also : Dif. Pos.-fbk. op.-Amp.

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about LM324 , uA741 , TL071 , LM308 :

  compared to conventional biasing schemes : 

the pos.-fbk scheme has more poor noise and frequency characteristics but it enables to use the feedback shoulder to excite a crystal or reduce the input current . . .

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 [Eop]

ADC related Op.-Amp. Experiment

~about

↑↑ _ the best result here however would be Frequency × Slew Rate _ ↑↑

(( required to Drive 74HC14 's INP , AND/OR that relative to a V_REF . . . basically to make power-buffer's input more sensitive & a higher impedance one))

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[Eop]