Timeline for Common mode RC filter of High-BW differential line
Current License: CC BY-SA 3.0
9 events
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May 23, 2017 at 11:46 | comment | added | user76844 | Mind that the capacitors have bad accuracy, meaning you screw up the CMRR by the two caps to GND. Only use one between the line to ensure symmetry | |
May 23, 2017 at 11:41 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
Apr 19, 2017 at 8:56 | answer | added | Flip | timeline score: 1 | |
Jan 8, 2015 at 14:31 | comment | added | George Herold | OK you've got a very wide bandwidth, so all I can think of are notch filters at 50,100, 150 Hz? That or better shielding. I can't think of a way to filter common mode, and leave the differential, without taking the difference of the signal. | |
Jan 8, 2015 at 12:06 | comment | added | user2286899 | The ADC is differential so yes CM issues should be removed, however the system is going to operate in a high voltage, high current industrial environment, so yes to the dynamic range issues. | |
Jan 7, 2015 at 17:12 | comment | added | George Herold | I'm confused, aren't you going to take the difference (V(+) - V(-)) somewhere in software? That should get rid of the common mode. Or are you expecting lots of CM signal and are worried about dynamic range issues? | |
Jan 7, 2015 at 16:02 | history | edited | Null♦ | CC BY-SA 3.0 |
added 46 characters in body
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Jan 7, 2015 at 15:58 | review | First posts | |||
Jan 7, 2015 at 16:03 | |||||
Jan 7, 2015 at 15:58 | history | asked | user2286899 | CC BY-SA 3.0 |