Hi all
I am trying to amplify a really small signal at 0,9nV amplitude.
The signal was obtained from a transimepance amplifier. The signal should go for a second or even third stage amplification.
Here comes my question:
How to amplify a such small signal?
I have tried with OpAmps, but OpAmps seem not be able to amplify such small signals.. With 1k and 1M amplify resistance, the input current will be 0.9pA pp, which is too small for any OpAmps...
Any idea will be appreciated.
Thank you very much.
Richie
I am trying to amplify a really small signal at 0,9nV amplitude.
The signal was obtained from a transimepance amplifier. The signal should go for a second or even third stage amplification.
Here comes my question:
How to amplify a such small signal?
I have tried with OpAmps, but OpAmps seem not be able to amplify such small signals.. With 1k and 1M amplify resistance, the input current will be 0.9pA pp, which is too small for any OpAmps...
Any idea will be appreciated.
Thank you very much.
Richie