I am simulating a +1 gain amplifier using the AD8003 model under spice. It seems possible to reduce the bandwidth playing with the series resistor rather than the feedback resistor. Is it a reliable behaviour? If yes, what would be the physical reason? I don't find any information in the CFB opamp litterature.
For instance with a 1kohms serie resistor I can reduce the bandwidth whereas changing the Rfeedback resistor from 680 to 4kohms doesn't change.
Thank you very much for the clarification.
Is there any feedback resistor value that allows to change (reduce) significantly the bandwidth of the AD8003 when used in a gain=+1 circuit ?
De : JinoL
Envoyé : vendredi 22 septembre 2017 09:58
À : Raphaël Bendel <firstname.lastname@example.org>
Objet : Re: - Re: AD8003 amplifier bandwidth under spice
Re: AD8003 amplifier bandwidth under spice
reply from JinoL<JinoL> in Amplifiers - View the full discussion<https://ez.analog.com/message/318862?commentID=318862&et=watches.email.thread#comment-318862>