Brochure

Rohde & Schwarz Probes and accessories for Rohde & Schwarz oscilloscopes 21
Measuring small voltages riding on large
DCoffsets
The oscilloscopes' built-in offset is typically not sufficient
to zoom in and to accurately measure peak-to-peak volt-
age on DC power rails. This makes accurate ripple mea-
surements impossible. With ±60 V offset compensation
range, the R&S®RT-ZPR power rail probes allow users to
zoom in on DC voltages with high offset. Whether you
need to zoom in on a 1V power rail or something much
higher, the probe provides the needed offset.
R&S®ProbeMeter – integrated high-accuracy
DCvoltmeter
While other oscilloscopes are limited to showing a wave-
form view of power rails under test, the R&S®RT-ZPR
power rail probes additionally incorporate a high-accuracy
DC voltmeter to quickly see rail values. The integrated DC
voltmeter with an input voltage range of ±60 V monitors
long-term drift of the DC level with high accuracy. Com-
bined with the ripple voltage observed at the oscilloscope,
you can see at any time whether the power supply ripple
leaves the permitted operating voltage window of the DUT.
Comprehensive accessories included
The R&S®RT-ZPR power rail probes come with solder-in
cables for broadband probing and a 350MHz browser kit
to easily measure at different places on a PCB or to verify
the DC power supply using the R&S®ProbeMeter.
Model Bandwidth Attenuation
factor
Input
impedance
Dynamic range Comment Order No.
R&S®RT-ZPR20 2.0 GHz 1:1 50 kΩ ±0.85 V
(±60 V offset
compensation),
optional AC coupling
R&S®ProbeMeter 1800.5006.02
R&S®RT-ZPR40 4.0 GHz 1800.5406.02
R&S®RT-ZA25 – – – – power rail browser kit, included with
R&S®RT-ZPR20/40
1800.5329.00
R&S®RT-ZA26 – – – – pigtail cable, 15cm, solder-in, SMA for
R&S®RT-ZPR20/40 power rail probe,
included with R&S®RT-ZPR20/40
1800.5258.00
Accurately verify DC level and power supply load response during initial-
ization of a DDR3 memory with the R&S®ProbeMeter and the R&S®RTO
oscilloscope's flexible math functions.
The R&S®RT-ZPR power rail probes come with a rich set of standard
accessories for probing in all scenarios.
The high bandwidth of the R&S®RT-ZPR power rail probes allow you to
capture even high- frequency noise components that can be easily ana-
lyzed with the R&S®RTO spectrum analysis function.
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