28
Operating the Probe
5 cm Resistive Signal Lead and Solder-down Ground Lead
Input Impedance
The E5382A probes have an input impedance which varies with frequency, and
depends on which accessories are being used. The following schematic shows
the circuit model for the input impedance of the probe when using the SMT
solder-down Signal (red) and Ground (black) wires. This model is a simplified
equivalent load of the measured input impedance seen by the target.
Equivalent load model
Measured versus modeled input impedance
2
1
8
6
10
4
4
2
1
8
6
4
2
1
8
6
4
2
M
ea
su
re
d
M
od
el
10 1
10
4
6 8 1
2
4 6 8 1
2
4 6 8 1
Frequency
2
4 6 8 1
2
4 6 8 1
2
4 6
10
9
Summary of Contents for E5382A
Page 4: ...4 Contents ...
Page 5: ...1 General Information ...
Page 13: ...2 Operating the Probe ...
