Appendix A: Specifications
Inputs
Input
coupling
DC, AC, or GND
Channel input remains term inated when using GND coupling.
Input
impedance,
DC coupled
1MΩ ±1% in para llel w ith 13 pF ±2 pF, TekProbe compatible
50 Ω ±1%
VSWR ≤ 1.5:1 from DC to 500 MHz, V/div settings ≥ 100 mV,
typical
VSWR ≤ 1.6:1 from DC to 500 MHz, V/div settings < 100 mV,
typical
Overvoltage category
Maximum voltage
Non-Mains Environment
150 V
RMS
(400 V
pk
,Duty
Factor of 37.5%)
CAT II Environment
1
100 V
RMS
(400 V
pk
,Duty
Factor of 25%)
Maximum
voltage at
input BNC
(1 MΩ)
For steady-state sinusoidal waveforms, derate at
20 dB/decade above 200 kHz to 13 V
pk
at 3 MHz and above.
Maximum
voltage at
input BNC
(50 Ω)
5V
RMS
with peaks ≤ ±30 V
Maxim
um
trans
ient
over
voltage
400 V
pk
Maximum
floating
voltage
0 V from chassis (BNC) ground to earth ground, or
30 V
RMS
(42 V
pk
) only under t hese conditions: no signal
voltages >30 V
RMS
(>42 V
pk
), all common leads connected to
the same voltage, no grounded peripherals attached
150 TDS3000C Series Oscilloscope User Manual