Introduction - Keysight N2804 User Manual

Keysight N2804/5A Differential Probes
User's Guide

Introduction

The N2804A and N2805A differential probes provide superior general-purpose
differential signal measurements that are required for high-speed power
measurements, vehicle bus measurements, and high-speed digital system
designs. Both probes are powered by the oscilloscope's AutoProbe interface. Both
probes are designed for Measurement Category II (CAT II) as described in
Measurement Category Definitions"
The N2804A 300 MHz differential probe offers 100:1 attenuation ratio, allowing it
to be used for high voltage signal measurements. The differential probe has an
differential input resistance of 4 MW and low input capacitance of 4 pF to minimize
circuit loading. The probe comes with a pair of extension leads (30 cm long) with a
damping resistor built in to damp out the in-band resonance and provide flat
frequency response even with the extension leads and the probe tip accessories
used.
The N2805A 200 MHz differential probe is designed to provide superior differential
signal measurements especially in environments where extended cable length is
required. This is due to the probe's 5m long cable length.
Table 1 Quick Probe Comparison
Bandwidth
Attenuation Ratio
Differential Input Loading
Maximum Differential Input
Probe Cable Length
* Refer to "Specifications and Characteristics"
*
N2804A
300 MHz
100:1
W
4 M ǁ 4 pF
\
300V (DC + peak AC) and ±200 V
1.2 m
on page 20 for the complete specifications.
on page 35.
N2805A
200 MHz
50:1
W
4 M ǁ 4 pF
\
100V (DC + peak AC) and ±100 V
rms
5 m
"IEC
rms
5