Making Measurements
2
Burden Voltage of N2822/4A Probe Heads
N2820/1A User’s Guide
47
Burden Voltage of N2822/4A Probe Heads
When an N2822/4A head is used, the resistance of the head’s
connectors, sensor leads, and internal
R
SENSE
resistor is connected
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.
Figure 20
V
burden
Developed Across Probing Components
V
burden
I
measured
R
shunt
×
=
NOTE
N2825A heads do not contribute a burden voltage as the current is
not
flowing through the head.
Summary of Contents for N2820A
Page 1: ...Keysight N2820 1A High Sensitivity Current Probes User s Guide...
Page 30: ...30 N2820 1A User s Guide 2 Making Measurements Quick Start Figure 10 R Sense Entry Box...
Page 84: ...84 N2820 1A User s Guide 5 Characteristics and Specifications Dimensions...
Page 94: ...94 N2820 1A User s Guide 6 Performance Data Plots Input Load Model...
Page 106: ...106 N2820 1A User s Guide 7 Performance Verification Performance Test Record...
Page 109: ...N2820 1A User s Guide 109...
