Op Amp Open Loop Frequency Response

Thread Starter

TommyTrance

Joined Feb 22, 2012
2
Hi all,


I have been given a question which asks to define;
a) the slew rate of an Op Amp
b) the open loop frequency response of an Op Amp


i have obtained information about the slew rate, but the open loop frequency response is being tricky. can any one give me advice on this one? Is open loop frequency response the same as open loop gain?


Cheers


Tom
 

#12

Joined Nov 30, 2010
18,224
I would guess that the gain-bandwidth product divided by the voltage gain (open loop) would be the frequency limit.

Name a chip, get the datasheet, and read the specs. Hopefully the information will be there for the taking.
 

crutschow

Joined Mar 14, 2008
34,201
A normal compensated opamp has a -6dB octave rolloff (single pole) with frequency that typically starts at a low frequency and continues past the point where the gain drops to 1. The opamp data sheet will show that.
 
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