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How to build lock-in amplifier to lock into 400Hz?

Question asked by girishsk@umich.edu on Jan 15, 2015
Latest reply on Jan 19, 2015 by jstaley

Hi

I am trying to build the lock in functionality of the SR830 onto a PCB for my specific needs. I have an input at 100kHz which I modulate with 400Hz signal and then have to detect the output at 400Hz through lock-in amplifier. Can someone please guide me how to implement this? I saw datasheet of AD630 but I am not sure whether it can handle this high frequency. Or if there is any other better way to implement the circuit.

Thanks for your help!

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