asdf44
Advanced Member level 4
Like others I'm sure, we constantly run into the limitations of our differential probes when looking at high CM slew signals like high voltage high side gate drive.
What equipment do other people like for these applications? Are there better probes than what I'm aware of?
Things I'm aware of:
Example differential probe:
https://www.tek.com/datasheet/high-voltage-differential-probes
DC: > -80 dB
100 kHz: > -60 dB
3.2 MHz: > -30 dB
100 MHz: > -26 dB
Tek's very expensive all optical isolated probe:
https://www.tek.com/isolated-measurement-systems
Isolated Scopes:
https://cleverscope.com/ (~$10k, 100dB CMMR@50 MHz)
https://int.siglent.com/products-overview/shs1000/ (~$2k, >100:1 CMMR@50MHz)
Tek THS3000 (~$5k, can't find CMMR)
What equipment do other people like for these applications? Are there better probes than what I'm aware of?
Things I'm aware of:
Example differential probe:
https://www.tek.com/datasheet/high-voltage-differential-probes
DC: > -80 dB
100 kHz: > -60 dB
3.2 MHz: > -30 dB
100 MHz: > -26 dB
Tek's very expensive all optical isolated probe:
https://www.tek.com/isolated-measurement-systems
Isolated Scopes:
https://cleverscope.com/ (~$10k, 100dB CMMR@50 MHz)
https://int.siglent.com/products-overview/shs1000/ (~$2k, >100:1 CMMR@50MHz)
Tek THS3000 (~$5k, can't find CMMR)