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Noise reduction IC?

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wilbee

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>dear all

I had put together a simple detection system using an optical incremental encoder system, the output is a voltage signal which corresponds to the displacement.

however, after some studying at this output signal I found the noise to be higher than I wanted. It is currently at 50mV and I wanted it to get down to 5mV. As I need to sample this voltage and process it in a PC and the DAQ card has a resolution of 8mV.
The voltage singal (not including the noise) is not going to be changing at a rate higher than 20kHz.

Are there any processing chip I can readily buy, which will attenuate this noise level?

Many thanks first for any help :lol:
wil
 
You need to give a lot more details - filtering could reduce the noise, but only if the noise is in a different part of the spectrum to the signal.

Have you tried to reduce the noise at the source?, where is the noise actually coming from?.
 
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