I have a question about OP1177 which I would like to use to amplify very low
signals at low frequencies (current anbd voltage measurement in a railway
However the data sheet does not provide a current noise graph on which I could
get the corner frequency.
Can you provide it ?
We don't have any available data on the OP1177 current noise density. However I
can confirm that the ADA4077-1 (next generation part of OP1177) has a current
noise density specs similar to the OP1177. You can find the corresponding
current noise figures in the ADA4077 datasheet (Fig 67 and 68).