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All forums and questions are now archived. To start a new conversation or read the latest updates go to forums.mbed.com.
Trying to deal with measuring a noisy 0 to 5v signal using the MBED A/D I came up with this.
I'm using the MCP602 op-amp powered from 3.3v. The gain is such that it just gets under the op-amp's input voltage limit. The filter is pretty flat to 100Hz, the cut off was near 150Hz. It should be easy to scale to different frequencies.