15 Reference
404 InfiniiVision Oscilloscopes User’s Guide
Transient Withstand Capability
Maximum input voltage at analog inputs and 2-channel external trigger input:
CAT I 300 Vrms, 400 Vpk; transient overvoltage 1.6 kVpk
CAT II 100 Vrms, 400 Vpk
50 input: 5 Vrms
Input protection is enabled in 50 mode and the 50 load will disconnect if greater
than 5 Vrms is detected. However the inputs could still be damaged, depending on
the time constant of the signal. The 50 input protection only functions when the
oscilloscope is powered on.
1 M ohm input, 100 MHz models:
For steady-state sinusoidal waveforms derate at 20 dB/decade above 200 kHz to a
minimum of 10 Vpk
1 M ohm input, 350 MHz, 500 MHz, 1 GHz models:
For steady-state sinusoidal waveforms derate at 20 dB/decade above 57 kHz to a
minimum of 5 Vpk
With N2863A 10:1 probe: CAT I 600 V, CAT II 300 V (DC + peak AC)
With 10073C or 10074C 10:1 probe: CAT I 500 Vpk, CAT II 400 Vpk
Maximum input voltage at digital channels: ±40 V peak CAT I; transient overvoltage
800 Vpk
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