Offset_test
*SPICE Netlist generated by Advanced Sim server on 08.12.2025 23:19:26
.options MixedSimGenerated

*Schematic Netlist:
XIC1A NetIC1_3 VCM VAP 0 NetIC1_1 TL074
XIC1B pos NetIC1_6 VAP 0 saw TL074
XIC1C R.VMID VCM VAP 0 VCM TL074
RR_a NetR_a_1 NetIC1_6 10k
RR_b NetR_a_1 pos 10k
RR_c NetIC1_6 saw 10k
RR_pd gate 0 100k
RR_S1 R.VMID VAP 220k
RR_S2 0 R.VMID 220k
RR_vor gate NetIC1_1 100R
QT pos gate VCM QBC547B
VU_single VAP 0 7.5V
VVin NetIC1_3 0 DC 0 PULSE(0 5 0 1u 1u 10 20) AC 1 0
VVin2 NetR_a_1 0 DC 0 PULSE(3.8 5 0 10 10 1u 20) AC 1 0

.PLOT TRAN {v(Vin2)} =PLOT(1) =AXIS(1)
.PLOT TRAN {v(saw)} =PLOT(2) =AXIS(1)
.PLOT TRAN {v(pos)} =PLOT(3) =AXIS(1)
.PLOT TRAN {v(Vin)} =PLOT(1) =AXIS(1)

.OPTIONS METHOD=GEAR MAXORD=2
*Selected Circuit Analyses:
.TRAN 800.0m 100 0 800.0m

*Models and Subcircuits:
*TL074
*Quad LoNoise JFETInput OpAmp pkg:DIP14
*+ (A:3,2,4,11,1)(B:5,6,4,11,7)(C:10,9,4,11,8)(D:12,13,4,11,14)
* Connections:
*             Non-Inverting Input
*             | Inverting Input
*             | | Positive Power Supply
*             | | | Negative Power Supply
*             | | | | Output
*             | | | | |
.SUBCKT TL074 1 2 3 4 5
C1   11 12 3.498E-12
C2    6  7 15E-12
DC    5 53 DX
DE   54  5 DX
DLP  90 91 DX
DLN  92 90 DX
DP    4  3 DX
BGND 99  0 V=V(3)*.5 + V(4)*.5
BB    7 99 I=I(VB)*4.715E6 - I(VC)*5E6 + I(VE)*5E6 +
+              I(VLP)*5E6 - I(VLN)*5E6
GA    6  0 11 12 282.8E-6
GCM   0  6 10 99 8.942E-9
ISS   3 10 DC 195E-6
HLIM 90  0 VLIM 1K
J1   11  2 10 JX
J2   12  1 10 JX
R2    6  9 100E3
RD1   4 11 3.536E3
RD2   4 12 3.536E3
RO1   8  5 150
RO2   7 99 150
RP    3  4 2.143E3
RSS  10 99 1.026E6
VB    9  0 DC 0
VC    3 53 DC 2.2
VE   54  4 DC 2.2
VLIM  7  8 DC 0
VLP  91  0 DC 25
VLN   0 92 DC 25
.MODEL DX D(IS=800E-18)
.MODEL JX PJF(IS=15E-12 BETA=270.1E-6 VTO=-1)
.ENDS TL074

*
.MODEL QBC547B NPN(
+     IS=2.39E-14
+     NF=1.008
+     ISE=3.545E-15
+     NE=1.541
+     BF=294.3
+     IKF=0.1357
+     VAF=63.2
+     NR=1.004
+     ISC=6.272E-14
+     NC=1.243
+     BR=7.946
+     IKR=0.1144
+     VAR=25.9
+     RB=1
+     IRB=1E-06
+     RBM=1
+     RE=0.4683
+     RC=0.85
+     XTB=0
+     EG=1.11
+     XTI=3
+     CJE=1.358E-11
+     VJE=0.65
+     MJE=0.3279
+     TF=4.391E-10
+     XTF=120
+     VTF=2.643
+     ITF=0.7495
+     PTF=0
+     CJC=3.728E-12
+     VJC=0.3997
+     MJC=0.2955
+     XCJC=0.6193
+     TR=1E-32
+     CJS=0
+     VJS=0.75
+     MJS=0.333
+     FC=0.9579 )

.END