N2848A Quicktip Head With N2849A Quicktip Tip - Keysight InfiniiMax III+ Series User Manual

9
SPICE Models

N2848A QuickTip Head with N2849A QuickTip Tip

The following input-impedance SPICE subcircuit data is for the N2848A QuickTip probe
head with N2849A QuickTip tip. The data models all modes of input impedance:
differential, common, and A or B. The probe is vertical orientated with both ground wires
connected to the DUT ground.
SPICE Subcircuit Data
.subckt N2849A_N2848A 1 2
r1 1 3 1e8
r2 2 3 1e8
r9 3 0 .5e8
r_srlc2 5 7 242.9
l_srlc2 7 8 5.370n
c_srlc2 8 6 52.43f
r_srlc3 4 9 68.66
l_srlc3 9 10 7.669n
c_srlc3 10 6 7.102f
r_srlc1 4 11 245.5
l_srlc1 11 12 1.550n
c_srlc1 12 6 197.9f
r3 4 13 1000
c1 13 6 50n
r5 13 6 100k
r8 6 0 1e-6
r4 14 16 500
r_srlc4 14 18 353.9
l_srlc4 18 19 10.98n
c_srlc4 19 17 230.6f
r_srlc5 14 20 110.7
l_srlc5 20 21 5.880n
c_srlc5 21 17 8.244f
r_srlc6 15 22 611.8
l_srlc6 22 23 8.632n
c_srlc6 23 17 49.18f
r6 16 17 50k
c2 16 17 100n
r7 17 0 1e-6
e1 5 0 4 0 -1
e2 4 0 1 2 1
e3 14 0 3 0 2
e4 15 0 14 0 -1
g1 1 2 6 0 1e6
g2 1 0 17 0 1e6
g3 2 0 17 0 1e6
.ends
152 InfiniiMax III+ Series Probes User's Guide