Re: calculating 3db freq/ UGB from closed loop gain, open loop gain
Hi,
If UGB is 1MHz
And closed loop gain is 20
Then you may estimate about 1MHz / 20 = 50kHz closed loop bandwidth.
If you need to take -3dB into account then maybe is 50kHz x 1.41 = 70.7kHz.
But this is a raw estimation, because UGB is a raw estimation, too. It varies with production.
open loop gain of opamp is 70db. if the same opamp used in noninverting configuration which provides gain of 50 in linear, then what would be 3db frequency of opamp?
this is the question i was asked as it is...
apart from this data, no other data was given to me
open loop gain of opamp is 70db. if the same opamp used in noninverting configuration which provides gain of 50 in linear, then what would be 3db frequency of opamp?