Burden Voltage Of N2822/4A Probe Heads - Keysight N2820A User Manual

Burden Voltage of N2822/4A Probe Heads

N2820/1A User's Guide
When an N2822/4A head is used, the resistance of the head's
connectors, sensor leads, and internal R
in series with the DUT's circuit and current is flowing through the
probe head, as shown in
Therefore, a burden voltage (IR) is introduced into your circuit.
Burden voltages may affect the circuit and will tend to increase the
noise. Burden voltages do not affect the measurement.
page 11 lists the resistances added by various probing
components.
N2825A heads do not contribute a burden voltage as the current is not
NOTE
flowing through the head.
Figure 20
Burden Voltage of N2822/4A Probe Heads
Figure 20.
V I
=
burden measured
V Developed Across Probing Components
burden
Making Measurements
resistor is connected
SENSE
× R
shunt
Table 2
2
on
47