Category : Science and Education
Archive   : SPICE.ZIP
Filename : DEMO2.CIR

** Darlington boost op-amp (from EDN May 29, 1986 pg 133 -> with minor changes)

vin 1 0 sin(0 5 10k) dc 0 ac 1
vcc 11 0 15.0
vee 12 0 -15.0
r1 0 2 10k
r2 2 out 10k
r3 5 6 2k
r4 5 20 33k
r5 20 10 2k
r6 11 7 1.2k
r7 18 12 1.2k
r8 14 15 1k
r9 16 17 1k
r10 15 out .1
r11 17 out .1
r12 1 3 5k
rload out 0 8
c1 2 4 39pf
d1 11 6 D1N4148
d2 8 9 D1N4148
d3 9 4 D1N4148
d4 4 13 d1n4148
d5 13 19 d1n4148
d6 10 12 d1n4148
q1 8 5 7 q2n3906
q2 19 20 18 q2n3904
q3 8 14 out q2n2222A
q4 19 16 out q2n2907A
x1 3 2 11 12 4 lf156
x2 11 8 15 q2n6384
x3 12 19 17 q2n6649
.include lf156

* Note: this next line are meaningful only in batch mode
.save 1 out
* Note: these next lines are meaningful only in batch mode
* or when the "run" command is given in interactive mode
.AC dec 15 1 100meghz
.tran .5us 200us
.four 10k out
***************************
* models and subcircuits *
***************************
.MODEL D1N4148 D (IS=14.2P RS=4.2 N=1.7 BV=74.9 IBV=10U
+ CJO=1.73P VJ=.75 M=.333 TT=5.76N)
* 75 Volt .01 Amp .004 us Si Diode 07-08-1991
**********
.MODEL Q2N3906 PNP (IS=8.012404E-17 NF=1 BF=136 VAF=113 IKF=65M
+ ISE=800F NE=2 BR=4 NR=1 VAR=20 IKR=97.5M RE=3.63 RB=14.5
+ RC=1.45 XTB=1.5 CJE=11.8P CJC=8.81P TF=636P TR=95.6N)
* 40 Volt .2 Amp 250 MHz SiPNP Transistor 06-28-1991
**********
.MODEL Q2N3904 NPN (IS=4.667347E-17 NF=1 BF=238 VAF=113 IKF=65M
+ ISE=1.18P NE=2 BR=4 NR=1 VAR=24 IKR=97.5M RE=2.63 RB=10.5
+ RC=1.05 XTB=1.5 CJE=9.46P CJC=7.83P TF=530P TR=85N)
* 40 Volt .2 Amp 300 MHz SiNPN Transistor 06-28-1991
**********
.MODEL Q2N2222A NPN (IS=5.632971E-19 NF=1 BF=175 VAF=113 IKF=.4
+ ISE=237F NE=2 BR=4 NR=1 VAR=24 IKR=.6 RE=.963 RB=3.85
+ RC=.385 XTB=1.5 CJE=29.5P CJC=19.2P TF=530P TR=95.6N)
* 40 Volt .8 Amp 300 MHz SiNPN Transistor 06-28-1991
**********
.MODEL Q2N2907A PNP (IS=1.536728E-18 NF=1 BF=103 VAF=139 IKF=.5
+ ISE=96.0F NE=2 BR=4 NR=1 VAR=20 IKR=.75 RE=1.56 RB=6.25
+ RC=.625 XTB=1.5 CJE=46.0P CJC=19.2P TF=794P TR=34N)
* 60 Volt .6 Amp 200 MHz SiPNP Transistor 06-28-1991
**********
.SUBCKT Q2N6384 1 2 3
* TERMINALS: C B E
Q1 1 2 4 QPWR .1
Q2 1 4 3 QPWR
R1 2 4 4K
R2 4 3 50
D1 3 1 DSUB
.MODEL QPWR NPN (IS=12P NF=1 BF=49.3 VAF=139 IKF=7.5
+ ISE=21.2P NE=2 BR=4 NR=1 VAR=20 IKR=11.2 RE=.115 RB=.46
+ RC=46M XTB=1.5 CJE=2.21N CJC=481P TF=1.34P TR=3.67U)
.MODEL DSUB D (IS=12P N=1 RS=.115 BV=60 IBV=.001
+ CJO=481P TT=3.67U)
.ENDS
* 60 Volt 10 Amp NPN Darlington Transistor 06-28-1991
**********
.SUBCKT Q2N6649 1 2 3
* TERMINALS: C B E
Q1 1 2 4 QPWR .1
Q2 1 4 3 QPWR
R1 2 4 4K
R2 4 3 50
D1 1 3 DSUB
.MODEL QPWR PNP (IS=12P NF=1 BF=49.3 VAF=139 IKF=7.5
+ ISE=21.2P NE=2 BR=4 NR=1 VAR=20 IKR=11.2 RE=.115 RB=.46
+ RC=46M XTB=1.5 CJE=2.21N CJC=481P TF=1.34P TR=3.67U)
.MODEL DSUB D (IS=12P N=1 RS=.115 BV=60 IBV=.001
+ CJO=481P TT=3.67U)
.ENDS
* 60 Volt 10 Amp PNP Darlington Transistor 06-28-1991
.end