Keysight N2818/9A Differential Probes User Guide
25
Using the Probe
Specifications and Characteristics
The following tables list the characteristics for the N2818A and N2819A
differential probes. Before any testing and to allow the probe to warm up,
connect the probe to a powered-on oscilloscope for at least 20 minutes.
Ensure that the environmental conditions do not exceed the probe’s
specified limits.
Table 6
Electrical Specifications and Characteristics
Description
N2818A without the
N7013/14A Extreme
Temperature Probing Kit
*
N2818A with the N7013/14A
Extreme Temperature Probing
Kit
N2819A
Bandwidth (–3 dB)
†
200 MHz
70 MHz
800 MHz
Attenuation Ratio
10:1
10:1
10:1
Probe Risetime (10% – 90%)
1.75 ns
1.75 ns
437 ps
Gain Accuracy (% of reading)
±
2%
±
2%
±
2%
Absolute Maximum Rated Input Voltage (each
side to ground)
±
60V
±
60V
±
40V
Maximum Differential Input Voltage
(DC + AC Peak)
±
20V
±
20V
±
15V
Maximum Common Mode Input Voltage
±
60V
±
60V
±
30V
Input Resistance
ǁ
Capacitance
Each Side to Ground:
500 k
Ω
ǁ
7 pF
500 k
Ω
ǁ
7 pF
100 k
Ω
ǁ
2 pF
Between Inputs:
1 M
Ω
ǁ
3.5 pF
1 M
Ω
ǁ
3.5 pF
200 k
Ω
ǁ
1 pF
Output Voltage Swing
±
2V (driving 50
Ω
scope input)
±
2V (driving 50
Ω
scope input)
±
1.5V (driving 50
Ω
scope
input)
Offset (typical)
±
2 mV
±
2 mV
±
5 mV
Offset Adjustment Range
–95 mV to +95 mV
–95 mV to +95 mV
–20 mV to +20 mV
AC CMRR
> –80 dB at 60 Hz
> –50 dB at 10 MHz
6 mV
rms
> –80 dB at 60 Hz
> –50 dB at 10 MHz
6 mV
rms
> –60 dB at 60 Hz
> –15 dB at 500 MHz
4.7 mV
rms
Noise Referenced to Input, Probe Only
6 mV
rms
6 mV
rms
4.7 mV
rms
Power Requirements
AutoProbe Interface
AutoProbe Interface
AutoProbe Interface
* All entries are typical unless otherwise noted.
† Warranted Specification.
