1 Square Inch 20MSPS Oscilloscope

1 Square Inch 20MSPS Oscilloscope

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PIC32MZ based tiny Oscilloscope by Mark Omo

A 1″ by 1″ 20msps Oscilloscope based on the PIC32MZ @ hackaday.io by “Mark Omo”. He writes:

This project is designed around a PIC32MZ EF processor. We use its internal ADCs in an interleaved mode in order to get the full 20Msps. We have found that in practice we are able to achieve approximately 1MHz of bandwidth.

The very first thing that happens is our signal goes into a 1M ohm terminator that also divides down our signal by 10X, allowing us to measure signals outside of the rails (up to around 30V Pk-Pk or ±15V). The very next thing that happens is the signal is passed through a pair of diodes connected to the rails that clamps the voltage to the rails preventing damage.

1 Square Inch 20MSPS Oscilloscope – [Link]

About mixos

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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