1. Spice Seminar
Simulation Program with Integrated Circuit Emphasis

2. Generating a Netlist SPICE Netlist Text file used for simulation
Simulate
Generate Netlist
(SPICE Netlist
Different flavors
Quite similar)
Schematic Entry
(Common Data format: EDIF)

3. Netlist Format C B E model name Q1 Vo Vin 0 Q2N2222 R1 Vo Vcc 1K
V1 Vin 0
V2 Vcc 0

4. Number format m 10-3 u 10-6 n 10-9 p 10-12 f 10-15 K 103 Meg 106 G 109
Alternative Notation 1e3
Note 10M is the same as 10m!

5. Which is more readable/maintanable?

6. Examples of Types of Spice Simulations
Bias Point
DC Sweep
Transient Analysis
AC sweep/Noise
Secondary (nested) sweeps
Parametric
Temperature
Monte Carlo

7. DC sweep
Result
Output as a function of Vin Vo V1

8. Parametric Sweep – creating a variable

9. Nested Sweep

10. Characterizing a MOSFET - specifying a Model file
Characterizing a MOSFET - specifying a Model file Primary Sweep and secondary sweep Vd
secondary Vg
primary
D G S B
M1 Vd Vg 0 0 MbreakN
V1 Vg 0
V2 Vd 0
.model MBreakN NMOS Vto = 1V Kp = 2m

11. Bias Point Simulation

12. Transient and AC Sweep Transient Results t t AC Sweep Results Vo freq
Time varying inputs
(ex. Sinusoidal, digital clock)
Output as a function of time t t
AC Sweep Results Vo
Multiple sinusoidal inputs each with a different frequency
Output as a function of freq.
freq

13. Transient Sweep
Vsin

14. Examples of Types of Spice Simulations
Bias Point
DC Sweep
Transient Analysis
AC sweep/Noise
Secondary (nested) sweeps
Parametric
Temperature
Monte Carlo