Keysight Technologies InfiniiMax III Series User Manual page 20

1. Using InfiniiMax III Series Probes
SPICE Models for N5440A, N5447A, N5441A, N5445A, and N5444A Probe Heads
N5440A Ceramic ZIF Tip,
N5439A ZIF Probe Head
N5447A Ceramic High
Sensitivity ZIF Tip,
N5439A ZIF Probe Head
20
N O T E You'll find the following SPICE data on the documentation CD that was shipped with
your probe. Copying this data from the CD is the simplest most reliable method to
get the data.
.subckt N5440A_N5439A_450ohmZIF 1 2
c1 1 10 20f
l1 10 11 1.5n
r1 11 2 180
rp1 1 3 180
lp1 3 4 1.5n
cp1 4 5 24f
cp2 5 6 100n
rp2 6 1 500
rp3 5 1 50k
cm1 2 7 24f
lm1 7 8 1.5n
rm1 8 5 180
cm2 2 9 100n
rm2 9 5 500
rm3 2 5 50k
rom 5 0 180
lom 5 0 30u
.ends
.subckt N5447A_N5439A_200ohmZIF 1 2
c1 1 10 20f
l1 10 11 2.3n
r1 11 2 250
rp1 1 3 1.2k
lp1 3 4 2.3n
cp1 4 5 24f
cp2 5 6 100n
rp2 6 1 250
rp3 5 1 25k
cm1 2 7 24f
lm1 7 8 2.3n
rm1 8 5 1.2k
cm2 2 9 100n
rm2 9 5 250
rm3 2 5 25k
rom 5 0 150
lom 5 0 30u
.ends