I am looking for a differential input oscilloscope with more sample memory than the 3425
And preferred USB3.
I want to use it for decoding a 500kbps CAN bus in a industrial automation project.
The isolated inputs make it ideal for this kind of trouble shooting.
When something go's wrong I want to be able to see the last 10 or 20 seconds of CAN messages and corresponding IO signals, e.g. CAN on chA and 3 24V IO on ch B,C and D.