Keysight N2820A User Manual page 50

2 Making Measurements
Dynamic Range
Effects Other Than
Dynamic Range
Channel Position on the
50
The value of the R
shown in
page 78. Using these two R
the dynamic range could be increased to 100 dB.
Selecting the proper R
between a value that is large enough to obtain accurate
measurements while small enough to avoid negatively affecting the
circuit under test. Increasing the resistance
• decreases the noise,
• increases sensitivity, and
• increases the burden voltage across the R
Decreasing the resistance will have the opposite effect.
This probe does not have voltage offset. Use the oscilloscope's
Screen
position controls to adjust the location of the waveform on the
screen. Vertical scaling occurs about zero amperes.
93dB
=
resistor can range from 1 mΩ to 1 MΩ as
SENSE
Figure 35, "Current Range of N2822/4A Heads," on
SENSE
resistance is often a compromise
SENSE
2.2A
20 log ------------- -
50 μA
values in different measurements,
resistor (IR).
SENSE
N2820/1A User's Guide