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Lab Report for M-Tech in VLSI & Microelectronics
Tanner Spice Programming Overview
1. For the circuit given in Fig 1.
i)
Determine the operating point of the circuit. Vary the voltage at V1 from
0Volt to 10 Volt and measure the voltage at the junction of 48 KΩ, 47
KΩ and 20 KΩ.
ii) Separate the resistors have temperature co-efficient of α = 0.02 & β =
0.005. Find the branch current through 47 KΩ resistor at a temperature
of 330˚ K and 380˚ K..
48 KΩ
Here the circuit is drawn at first as shown in the fig 2
and then the Netlist is done by the Software and we
edit to get the response given on the next page.
Afterwards the voltage variation is used using .DC
statement. Temperature variation is used by .TEMP
statement and the output is checked by .PRINT
statement.
V1
10 V
47 KΩ
20 KΩ
V2
5V
Fig. 1
Fig. 2 (Screenshot of Circuit Diagram in TSPICE)
Here the temperature is given as 330˚ K and 380˚ K So the temperature is converted in ˚ C
and the range found to be from 57˚C and 107˚C.
Page 1
Shubhankar Banarjee
Lab Report for M-Tech in VLSI & Microelectronics
Tanner Spice Programming Overview
So the netlist is hereunder
* SPICE netlist written by S-Edit Win32 6.00
* Written on Sep 7, 2005 at 18:13:29
* Waveform probing commands
.probe
.options probefilename="mtechsp1.dat"
+ probesdbfile="C:\Tanner EDA\T-Spice Pro v6\mtechsp1\mtechsp1.sdb"
+ probetopmodule="Module0"
* Main circuit: Module0
R1 N3 Gnd 20k TC=0.02, 0.005
R2 N3 N2 47k TC=.02, 0.005
R3 N4 N3 48k TC=0.02, 0.005
v4 Gnd N2 5.0
v5 N4 Gnd 10
.dc v5 0 10 0.01
.temp 57 107
.print v(N3)
.print i(R2)
* End of main circuit: Module0* SPICE netlist written by S-Edit Win32
6.00
* Written on Sep 7, 2005 at 18:13:29
* Waveform probing commands
.probe
.options probefilename="mtechsp1.dat"
+ probesdbfile="C:\Tanner EDA\T-Spice Pro v6\mtechsp1\mtechsp1.sdb"
+ probetopmodule="Module0"
* Main circuit: Module0
R1 N3 Gnd 20k TC=0.02, 0.005
R2 N3 N2 47k TC=.02, 0.005
R3 N4 N3 48k TC=0.02, 0.005
v4 Gnd N2 5.0
v5 N4 Gnd 10
.dc v5 0 10 0.01
.temp 57 107
.print v(N3)
.print i(R2)
* End of main circuit: Module0
and the output is shown below in Fig. 3.
Fig. 3 (Outout Screenshot)
Page 2
Shubhankar Banarjee
Lab Report for M-Tech in VLSI & Microelectronics
2.
Tanner Spice Programming Overview
Determine the frequency response of the circuit (shown in Fig. 4) in the frequency range of 100
Hz to 1 KHz by analyzing the current through resistanceR1 and voltage across C 3. The
specification of the circuit is given below. R1 and R2 have a temperature co-efficient of 0.02/˚C.
Perform AC Decade analysis taking 1000 points per cycle. V 1 = 1V /145˚, V2 = 1V /0˚, V3 = 1V
/-45˚, R1 = 5KΩ , R2 = 50KΩ, R3 = 500KΩ, C1=10μF, C2=20 μF, C3=30 μF.
50 KΩ
5 KΩ
V1
1V/145 ˚
10 μF
500 Ω
20 μF
V1
1V/0˚
V1
1V/-45 ˚
30 μF
Fig. 4
The circuit is drawn in Tspice as shown below. (Fig 5)
Fig. 5 (Circuit Diagram in TSPICE)
Here AC source is made using the V command
.v <name> <n+> <n-> AC
<Peak Voltage> <freq> <initial phaze>
and the AC analysis is done by
.ac dec 1000 100 1000
Temperature is given as
.temp 50
and the edited netlist is given in the next page with output (Fig.6)
Page 3
Shubhankar Banarjee
Lab Report for M-Tech in VLSI & Microelectronics
Tanner Spice Programming Overview
* SPICE netlist written by S-Edit Win32 6.00
* Written on Jul 22, 2005 at 19:11:51
* Waveform probing commands
.probe
.options probefilename="sedit.dat"
+ probesdbfile="sukanta.sdb"
+ probetopmodule="Module0"
* Main circuit: Module0
C1 N2 Gnd 10uf
C2 N4 Gnd 20uf
C3 N5 Gnd 30uF
R4 N6 N2 5k TC=0.02, 0.0
R5 N7 N4 50k TC=0.02, 0.0
R6 N8 N5 500 TC=0.0, 0.0
v7 N6 Gnd 0.0 AC 1.0 145
v8 N7 Gnd 0.0 AC 1.0 0
v9 N8 Gnd 0.0 AC 1.0 -45
.ac dec 1000 100 1000
.temp 50
.print im(r4) ip(r4) vm(n5) vp(n5)
* End of main circuit: Module0
Fig. 6
Page 4
Shubhankar Banarjee
Lab Report for M-Tech in VLSI & Microelectronics
3.
Tanner Spice Programming Overview
The parallel RLC circuit shown in the following figure (Fig. 7a) is supplied a triangular input
waveform as given below (Fig 7b).
Suppose the initial voltage across the capacitor is 2V. Obtain the voltage acriss branch and the
branch currents as function of time. Perform simulation for 10mSec.
Is (A)
1
I
200Ω
20 mH
30 nF
0
1
2
3 4
5
6
7
I
Fig :7
Fig. 8 (Circuit Diagram in TSPICE)
* SPICE netlist written by S-Edit Win32 Demo 9.12
* Written on Dec 5, 2005 at 18:16:38
* Waveform probing commands
.probe
.options probefilename="File0.dat"
+ probesdbfile="File0.sdb"
+ probetopmodule="Module0"
* Main circuit: Module0
C1 N1 Gnd 30nF
L2 N1 Gnd 20m
R3 N1 Gnd 200 TC=0.0, 0.0
i4 N1 Gnd pwl(0 0 1m 1 2m 0ma 3m 1ma 4m
.ic v(N1)=2
.tran 10u 10m 0 UIC
.PRINT i(c1) i(l2) i(r3)
* End of main circuit: Module0
Page 5
0ma 5m 1ma 6s 0ma )
Shubhankar Banarjee
Lab Report for M-Tech in VLSI & Microelectronics
Tanner Spice Programming Overview
Fig. 9 Output
4.
In the following diode circuit an AC input voltage Vin = 10 X 10 -3 Sin(2π X 103t) is
given. Print the bias point and small signal parameters of the diode. Plot the output
voltage from 0 – 200 μSec with 2 μSec increment. If the frequency of AC voltage is
varied from 1 Hz to 1 KHz plot the magnitude and phaze angle of output voltage. The
model parameters are
Is = 100E-15,
Rs=16, CTO=2pF,
TT=12nS,
BV=100,
IBV=100E-15
50Ω
10 μF
Vout
500Ω
500Ω
Vs=10V
Fig. 10
Page 6
Shubhankar Banarjee
Lab Report for M-Tech in VLSI & Microelectronics
Tanner Spice Programming Overview
Fig. 11 (Circuit Diagram on TSPICE)
Netlist
* SPICE netlist written by S-Edit Win32 Demo 9.12
* Written on Dec 5, 2005 at 21:06:06
* Waveform probing commands
.probe
.options probefilename="sedit.dat"
+ probesdbfile="File1.sdb"
+ probetopmodule="Module0"
* Main circuit: Module0
C1 N6 N2 10uF
D2 N3 N6 DIODE area=1
R3 N6 Gnd 500 TC=0.0, 0.0
R4 N2 Gnd 500 TC=0.0, 0.0
R5 N5 N3 50 TC=0.0, 0.0
v6 N5 N4 0 AC 10e-3 0.0
v7 N4 Gnd 10.0
.AC DEC 100 1 1000
.MODEL DIODE D (100E-15 16 2P 12N 100 100E-15)
.PRINT V(N2) V(N6)
* End of main circuit: Module0
Page 7
Shubhankar Banarjee
Lab Report for M-Tech in VLSI & Microelectronics
Tanner Spice Programming Overview
Output:
Fig. 12
5.
In the following bipolar transistor amplifier the output is taken across the resistor RL.
Calculate and plot the magnitude and phase of the voltage gain for frequencies from 1 Hz to
10 KHz. With a decade increment and 10 points per decade. The input voltage for AC
analysis is 10 mV. Calculate and plot the transient response of voltage from node 4 to node 6
for an input voltage of Vin=0.01 Sin(2π X1000t) and for a duration of 0 to 2 mSec in steps of
50 μSec. The details of AC and transient analysis of operating points should be printed. The
model parameters of the PNP BJT are IS=2E-16, BF=50, BR=1, RB=5, RC=1, RE=0,
TF=0.2NS, TR=5NS, CJE=0.4 pF, VJC=0.8, CCS=1 pF, VA=100
47KΩ
10KΩ
500Ω
1 μF
15 V
1 μF
20KΩ
Vout
2KΩ
Vin
5KΩ
10 μF
Fig. 13
Page 8
Shubhankar Banarjee
Lab Report for M-Tech in VLSI & Microelectronics
Tanner Spice Programming Overview
Circuit Diagram :
Fig. 14 (Circuit Diagram in TSPICE)
Netlist
* SPICE netlist written by S-Edit Win32 Demo 9.12
* Written on Dec 5, 2005 at 22:17:06
* Waveform probing commands
.probe
.options probefilename="sedit.dat"
+ probesdbfile="File1.sdb"
+ probetopmodule="Module0"
* Main circuit: Module0
Q1 N3 N5 N1 PNP area=1
C2 N3 N4 1UF
C3 N1 Gnd 10UF
C4 N8 N5 1UF
R5 N1 Gnd 2K TC=0.0, 0.0
R6 N5 Gnd 5K TC=0.0, 0.0
R7 N4 Gnd 20K TC=0.0, 0.0
R8 N2 N5 47K TC=0.0, 0.0
R9 N6 N8 500 TC=0.0, 0.0
R10 N2 N3 10K TC=0.0, 0.0
v11 N6 Gnd 0.0 AC .01 0.0
v12 Gnd N2 15.0
.MODEL PNP PNP(IS=2E-16 BF=50 BR=1
TR=5NS VA=100 CJE=0.4PF CJC=0.5PF
VJC=0.8 CCS=1PF VA=100)
.PLOT TRAN V(N3) V(N4) V(N6)
.PLOT AC VM(N4) VP(N4)
.TRAN/OP 50US 2MS
.AC DEC 10 1 10K
.OP
.PRINT
.PROBE
*End of main circuit: Module0
Page 9
RB=5 RC=1 RE=0
VJE=0.8 ME=0.4
TF=0.2NS
CJC=.5PF
Shubhankar Banarjee
Lab Report for M-Tech in VLSI & Microelectronics
Tanner Spice Programming Overview
Fig. 15
6
Consider the filter circuit given below (Fig .16). Plot the frequency response of the output
voltage. The frequency is varied from 10Hz to 100MHz with a increment of 1 decade and
10 points per decade. For the OP-AMP model ckt Ri=2 MΩ , Ro = 75Ω, C1=1.5619 μF,
R1=10 KΩ Ao=2 x 105.
0.01 μF
20K Ω
20K Ω
Vin
10K Ω
10K Ω
100K Ω
Vout
100K Ω
Fig. 16
Page 10
Shubhankar Banarjee
Lab Report for M-Tech in VLSI & Microelectronics
Tanner Spice Programming Overview
Fig 17 (Circuyit Diagram in TSPICE)
Netlist
* Main circuit: Module0
XA1 N3 N11 N7 AMP
XAmp_2 N15 N6 N14 AMP
C1 N1 N3 0.01uF
R2 N4 N7 20K TC=0.0, 0.0
R3 N1 N3 20K TC=0.0, 0.0
R4 N11 Gnd 10K TC=0.0, 0.0
R5 N4 N6 10K TC=0.0, 0.0
R6 N3 N6 10K TC=0.0, 0.0
R7 N14 N15 100K TC=0.0, 0.0
R8 N14 Gnd 100K TC=0.0, 0.0
v9 N4 Gnd 0.0 AC 1.0 0.0
.SUBCKT AMP A B C
RI B C 2M
RO A F 75
C1 E Gnd 1.5619
R1 E Gnd 10K
EA F Gnd E Gnd 2E+5
GB GND E B C 1u
.ENDS AMP
.ac dec 10 100M 10
.print ac vp(N15) VM(n15)
*End of main circuit: Module0
Page 11
Shubhankar Banarjee
Lab Report for M-Tech in VLSI & Microelectronics
Tanner Spice Programming Overview
Fig. 18 (OutPut)
7
design a nMOS transistor circuit with it’s drain connected to voltage source V DD of 5 V.
and gate connected to a DC voltage source varying the Vds in steps of 0.01 volt from 0 V to
5 V for each value of Vgs and vary Vgs from 0 to 5 volt. Vary the Vgs in steps of 0.01 v
from 0 to 5 volt for each value of Vds and vary Vds from 0 to 5 volt. Observe the drain
current characteristics.
Fig 19. (Circuit Diagram in TSPICE)
Page 12
Shubhankar Banarjee
Lab Report for M-Tech in VLSI & Microelectronics
Tanner Spice Programming Overview
Netlist
* SPICE netlist written by S-Edit Win32 6.00
* Written on Aug 31, 2005 at 20:09:54
* Waveform probing commands
.probe
.options probefilename="lab5.dat"
+ probesdbfile="C:\Tanner EDA\T-Spice Pro
v6\mtechsp1\lab5.sdb"
+ probetopmodule="Module0"
* Main circuit: Module0
M1 N3 N6 Gnd Gnd NMOS L=2u W=22u AD=66p PD=24u AS=66p
PS=24u
v2 N3 Gnd 5.0
v3 N6 Gnd 5.0
.include "c:\tanner eda\t-spice pro v6\models\ml2_typ.md"
.dc v2 0 5 0.01 v3 0 5 1
.print I(M1,N3)
* End of main circuit: Module0
Fig. 20 Output
Page 13
Shubhankar Banarjee
Lab Report for M-Tech in VLSI & Microelectronics
8
Tanner Spice Programming Overview
Design a CMOS Push Pull inverter. Obseve the V-I characteristics from 0-5 volt. Observe the
drain current as a function of input voltage applying bit streem 10101101 to the output
response..
Fig. 21 (Circuit Diagram in TSPICE)
* SPICE netlist written by S-Edit Win32 6.00
* Written on Aug 31, 2005 at 20:29:15
* Waveform probing commands
.probe
.options probefilename="lab5.dat"
+ probesdbfile="C:\Tanner EDA\T-Spice Pro v6\mtechsp1\lab5.sdb"
+ probetopmodule="Module0"
* Main circuit: Module0
M1 vout N3 Gnd Gnd NMOS L=2u W=22u AD=66p PD=24u AS=66p PS=24u
M2 vout N3 N8 N8 PMOS L=2u W=22u AD=66p PD=24u AS=66p PS=24u
v3 N3 Gnd bit({10101101} on=5.0 off=0.0 rt=0.01n ft=0.01n
delay=0 lt=20n ht=20n)
v4 N8 Gnd 5.0
.include "c:\tanner eda\t-spice pro v6\models\ml2_typ.md"
.tran 2n 160n
.print v(vout) v(N3)
* End of main circuit: Module0
Page 14
Shubhankar Banarjee
Lab Report for M-Tech in VLSI & Microelectronics
Tanner Spice Programming Overview
Fig. 22 (Output)
Page 15
Shubhankar Banarjee