Listing 2. Simple Differential Pair Circuit—Version 1
Date: Sun Mar 23 12:11:42 1997
Operating point information:
Node Voltage
---- -------
q1#base -5.93782e-04
q2#base -5.93782e-04
out2 2.529395e+00
out1 2.529395e+00
V(2) -5.87903e-06
V(1) -5.87903e-06
vcc 5.000000e+00
input 0.000000e+00
vee -5.00000e+00
V(3) -7.55292e-01
Source Current
------ -------
vin#branch -5.87903e-06
vcc#branch -9.88242e-04
vee#branch 1.000000e-03
BJT models (Bipolar Junction Transistor)
model bjt
type npn
is 1e-16
bf 80
nf 1
vaf 50
ikf 0
ise 0
ne 1.5
br 1
nr 1
var 0
ikr 0
isc 0
nc 2
rb 100
irb 0
rbm 100
re 0
rc 0
cje 3e-12
vje 0.75
mje 0.33
tf 3e-10
xtf 0
vtf 0
itf 0
ptf 0
cjc 2e-12
vjc 0.75
mjc 0.33
xcjc 1
tr 6e-09
cjs 2e-12
ccs 2e-12
vjs 0.75
mjs 0
xtb 0
eg 1.11
xti 3
fc 0.5
tnom 27
kf 0
af 0
Resistor models (Simple linear resistor)
model R
rsh 0
narrow 0
tc1 0
tc2 0
defw 1e-05
BJT: Bipolar Junction Transistor
device q2 q1
model bjt bjt
ic 0.000495 0.000495
ib 5.88e-06 5.88e-06
ie -0.0005 -0.0005
vbe 0.755 0.755
vbc -2.53 -2.53
gm 0.0191 0.0191
gpi 0.000227 0.000227
gmu 1e-12 1e-12
gx 0.01 0.01
go 9.41e-06 9.41e-06
cpi 1.08e-11 1.08e-11
cmu 1.23e-12 1.23e-12
cbx 0 0
ccs 2e-12 2e-12
Isource: Independent current source
device iee
dc 0.001
acmag 0
v -4.24
p 0.00424
Resistor: Simple linear resistor
device rl2 rl1 rb2 rb1
model R R R R
resistance 5e+03 5e+03 1 1
i -0.000494 -0.000494 -5.88e-06 -5.88e-06
p 0.00122 0.00122 3.46e-11 3.46e-11
Vsource: Independent voltage source
device vee vcc vin
dc -5 5 0
acmag 0 0 1
i 0.001 -0.000988 -5.88e-06
p 0.005 0.00494 0
--------------------------------------------------------------------------
Simple Differential Pair Circuit -- Version 1
DC transfer characteristic Sun Mar 23 12:11:42 1997
Legend: + = v(out1) * = v(out2)
--------------------------------------------------------------------------
sweep v(out1) 0.00e+00 1.00e+00 2.00e+00 3.00e+00 4.00e+00 5.00e+00
----------------------|---------|---------|---------|---------|---------|
-1.500e-01 4.983e+00 * . . . . +.
-1.400e-01 4.975e+00 * . . . . +.
-1.300e-01 4.963e+00 * . . . . +.
-1.200e-01 4.946e+00 .* . . . . +.
-1.100e-01 4.921e+00 .* . . . . +.
-1.000e-01 4.884e+00 .* . . . . + .
-9.000e-02 4.832e+00 . * . . . . + .
-8.000e-02 4.757e+00 . * . . . . + .
-7.000e-02 4.653e+00 . * . . . . + .
-6.000e-02 4.509e+00 . * . . . . + .
-5.000e-02 4.317e+00 . * . . . . + .
-4.000e-02 4.067e+00 . *. . . + .
-3.000e-02 3.756e+00 . . * . . + . .
-2.000e-02 3.386e+00 . . * . . + . .
-1.000e-02 2.971e+00 . . * +. . .
0.000e+00 2.529e+00 . . . X . . .
1.000e-02 2.088e+00 . . + *. . .
2.000e-02 1.673e+00 . . + . . * . .
3.000e-02 1.304e+00 . . + . . * . .
4.000e-02 9.930e-01 . +. . . * .
5.000e-02 7.435e-01 . + . . . . * .
6.000e-02 5.513e-01 . + . . . . * .
7.000e-02 4.080e-01 . + . . . . * .
8.000e-02 3.038e-01 . + . . . . * .
9.000e-02 2.295e-01 . + . . . . * .
1.000e-01 1.774e-01 .+ . . . . * .
1.100e-01 1.411e-01 .+ . . . . *.
1.200e-01 1.160e-01 .+ . . . . *.
1.300e-01 9.883e-02 + . . . . *.
1.400e-01 8.705e-02 + . . . . *.
1.500e-01 7.901e-02 + . . . . *.
----------------------|---------|---------|---------|---------|---------|
sweep v(out1) 0.00e+00 1.00e+00 2.00e+00 3.00e+00 4.00e+00 5.00e+00
CPU time since last call: 0.090 seconds.
Total CPU time: 0.090 seconds.
Current dynamic memory usage = 167936,
Dynamic memory limit = 2147377151.
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