Hi All.
I’ve bee looking into op amp bode plots so I can determine if a particular inverting op amp configuration is stable. The intention is these amps will interface to sensors, and drive into an ADC, even perhaps another INS amp.
Below are pics of two cct’s, one is configured to amplify the input, and the other is configured to attenuate the input. Included are the bode plots generated by the SPICE program.
Sedra and Smith has a good write up on how to evaluate an amplifier set up with gain to amplify the signal via its bode plot for stability RE: phase, and gain margin, but I can’t find anything on evaluating an op amp configured as an attenuator.
How do I interpret the bode plot of gain and phase relating to the attenuator? Can anyone help out?
Cheers
kv