Introduction to Hspi spice ce How to Install and Run Saied Barati - - PowerPoint PPT Presentation

Introduction to Hspi spice ce

How to Install and Run

Saied Barati BSc Computer Engineer, SUT S_barati@ce.sharif.edu

Introduction to HSpice

Introduction to Hspice How to Install Netlist Circuit Analysis

Introduction to HSpice

• Simulation Program with Integrated Circuit

Emphasis

• Developed in 1970’s at Berkeley
• Many commercial versions are available
• HSPICE is a robust industry standard
• Has many enhancements that we will use
• Written in FORTRAN for punch-card machines
• Circuits elements are called cards
• Complete description is called a SPICE deck

Introduction to HSpice

1)

First Download it! Link:

(Go to Course Home Page!)

Introduction to HSpice

2) Now Crack it! Note: HSpice (amoozesh).pdf  Page 2-4 Add “license.dat” to “environment variables” with the name of “LM_License_file”

Introduction to HSpice

Netlist = text-based description of circuit

• netlist does not use symbols or graphical elements
• makes it simple to learn but hard to visualize
• usually need a companion schematic
• netlist describes
• circuit elements (resistors, capacitors, etc.)
• power supplies, input voltages, bias currents, etc.
• connections between circuit elements
• analysis method; defines data to be calculated

Introduction to HSpice

Netlist Structure:

 Title (Required)  Circuit  Subcircuit(s)  Device Models  Analysis  Output  .end (Required)

Introduction to HSpice

Simple inverter circuit

• ***** Define power supplies and sources *****

V1 1 0 10 R1 1 2 10 R2 2 0 30 R3 2 3 200 V1 VDD 0 5 VPULSE VIN 0 PULSE 0 5 2N 2N 2N 98N 200N ***** Analysis statement ***** .TRAN 1n 300n .END

Introduction to HSpice

First line is title of simulation

 → statements are ignored

First character in every line specifies how HSPICE interprets the remaining line First line of a netlist:

 Any character  Title or comment line

Subsequent lines of netlist, and all lines of included files:

 .(XXXX): Netlist keyword (e.g.: .TRAN 0.5ns 20ns)  C, D, E, F, G, H, I, J, K, L, M, Q, R, S, V, W: Element

instantiation

 * (asterisk): Comment line (HSPICE)

Introduction to HSpice

• Names begin with the

element key letter (exception: subcircuits)

• Maximum name length:

1024 characters

First Letter Circuit Element or Source

C

capacitor

D

diode

I

independent current source

V

independent voltage source

R

resistor

Q

bipolar junction transistor

M

MOSFET

Introduction to HSpice

• Resistor

r<name> <terminal 1> <terminal 2> <value>

• Capacitor

c<name> <terminal 1> <terminal 2> <value>

• Diode

D<name> <terminal 1> <terminal 2> <model>

Ex:

R1 n1 n2 20k

Type: Resistor Name: R1 Connected nodes: n1, n2 Value: 20kΩ * 2= 40kΩ D1 a b DMOD Type: Diode Name: D1 Connected nodes: a, b Model: DMOD

Introduction to HSpice

Numbers can be

 Integer  Floating point

Introduction to HSpice

Vxx/Ixx n+ n- DC=dcval tranfun Vxx: Voltage source element name, must begin with V Ixx: Current source element name, must begin with I n+, n-: Positive and negative node DC=dcval: DC source keyword and value (in volts) Ex: VX 1 0 5V

Introduction to HSpice

Vxx/Ixx n+ n- PULSE v1 v2 td tr tf pw per

 PULSE: Keyword  v1: Initial value of the voltage or current  v2: Pulse plateau value  td: Delay to the first ramp  tr: Duration of the rising ramp  tf: Duration of the falling ramp  pw:

Pulse width

 per:

Pulse repetition period

Time td tr pw tf per v2 v1

Introduction to HSpice

Comment:

First letter of line is asterisk (*) → whole line is comment

 Dollar sign ($) anywhere on the line → text after is comment

For example:

 * <comment_on_a_line_by_itself>

• or-

 <HSPICE_statement> $ <comment_following_HSPICE_input>

Introduction to HSpice

1) .TRAN <Tstep> <Tstop>

 <Tstep>: time step  <Tstop>: End time (duration) of simulation

Ex: .tran 0.02 2.0 2) .DC <source> <vstart> <vstop> <vstep>

 <source>: source point  <vstart>: start voltage  <vstop>: stop voltage  <vstep>: voltage step

Ex: .DC Vin 0 1.8 0.1

Introduction to HSpice

Introduction to Hspice How to Install Netlist Circuit Analysis

Introduction to HSpice

Useful links:

 http://www.allaboutcircuits.com  http://www.ecircuitcenter.com/SPICEsummary.htm  http://www.tkt.cs.tut.fi/kurssit/8404142/K05/H10/v

lsi/hs_device.html

 http://www.ece.uci.edu/docs/hspice/hspice_2001_2

• 11.html

 http://www.seas.upenn.edu/~jan/spice/spice.exHspi

ce.html