Hspice Guide

7/24/2019 Hspice Guide

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HSICE Simulation GuideHSICE Simulation Guide

Mixed Signal Chip Design Lab

Department of Computer Science & Engineering

The Penn State Univ


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HSPICE Input/Output Files & SuffixesHSPICE Input/Output Files & Suffixes

HSPICE Input

input netlist .sp design configuration .cfg

initiali#ation hspiceini

HSPICE Output

run status .st0 output listing .lis

initial condition .ic

measure output .m* $eg mt%mt'(

)nal*sis data transient .t! $eg tr%tr'(

)nal*sis data dc .s" $eg s+%s+'(

)nal*sis data ac .ac $eg ac%ac'(

Plot file g! $eg gr% gr'(Note: # is either a sweep or a hardcopy file number.

Typical Invocations:

hspice design > design.lisor...

hspice design.ckt > design.out

.lis file contains results of:

.print & .plot

.op operating point!

.options results!

"un time status

epends on .$ption %ost


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#etlist St!uctu!e $ %ecommended Fo!mat#etlist St!uctu!e $ %ecommended Fo!mat

Title

ontrols

'ources

omponents

(odels & 'ubckts

***This is a better netlist

.options post acct opts node

.tran 0.1 5 $ needs 5 seconds tosettle

.print v(6) i(r16)

.plot v(4) v(14) v(data)

* Voltage sources

v4 4 0 dc 0 ac 0 0 pulse 0 1 0 .15 .15 .4 2

vdata data 0 sin(1.0 1.0 1.0 0.0 1.0)v6 6 0 exp(1 0 .1 .02 .6 .2)

* Components

L6 6 16 .05

c6 16 0 .05

r16 16 0 40c4 4 14 .1

L5 data 15 1

c5 15 0 .2

.odel ...

.end


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Input Cont!olInput Cont!ol

option

param

alter

model

Lib


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.OPIO#.OPIO#

,PT!,- L!ST

Prints a list of netlist elements node connections and valuesCalculates effective si#es of elements and .e* values

Useful in diagnosing topolog* related problems

,PT!,- -,DE

Prints a node connection table The nodal cross/reference table lists

each node and all the elements connected to it Useful in diagnosing topolog* related non/convergence problems

,PT!,- )CCT

0eports 1ob accounting and run/time statistics at the end of the output

listing

Useful in observing simulation efficienc* Maximum performance is +henTotal !teration Count 2 Convergent !teration Count is 32'

,PT!,- -,M,D

Suppresses the print/out of M,DEL parameters


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.OPIO#.OPIO#

,PT!,- P,ST P0,4E

5raph nodal voltages element currents circuit responsealgebraic expressions from transient anal*sis DC s+eeps )C

anal*sis

0e6uesting 5raph Data 7ormat

,PT!,- P,ST $binar*(

,PT!,- P,ST83 $)SC!! platform independent( P0,4E

9rite directl* to the 5raph Data 7ile $+ithout +riting to the L!S file(

Limit data in 5raph Data file to that specified in P0!-T PL,T

P0,4E 50)P:


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.OPIO#.OPIO#

,PT!,- SC)LE

profound effect on element parameter values 5eometric ELEME-T parameters $L 9 area etc(

5lobal +or.s for M,S7ETs D!,DEs and ;7ETs

,PT!,- SC)LE8


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.P'%'(.P'%'(

P)0)M parnam'8val'


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.P'%'(.P'%'(

Defining *our o+n functions

param


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.'E%.'E%

)LTE0 0erun a simulation several times +ith different

Circuit Topolog*

Models

Librar* Components

Elements

Parameter ?alues

,ptions

Source stimulus

)nal*sis ?ariables

PrintAPlot commands $must be parameteri#ed( 'st 0un / :SP!CE reads input netlist file up to the first )LTE0

Subse6uent / 0eads input netlist to next )LTE0 etc

)LTE0 Se6uence for 9orst Case Corner )nal*sis

DELETE L!4 0emoves previous librar* selection

L!4 )dd ne+ librar* case


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.'E%.'E%

Limitations2

C)- include Element Statements $except source(

D)T) L!4 DEL L!4 !-CLUDE M,DEL statements

!C -,DESET statements

,P ,PT!,-S P)0)M TEMP T7 T0)- DC )C

C)--,T include

P0!-T PL,T 50)P: or an* other !A, statements

)?,!D adding anal*sis statements under each )LTE0 bloc.

$ +ill cause huge penalt* in simulation time and confusion inresult outputting(


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.'E%.'E%

Example

Parameteri#e Source Statements

.PA#AM A=+n$ ,=n$

V1 VA BN< PLSE 08 8 0n$ A , +6.n$ 100n$

V2 V, BN< PLSE 08 8 0n$ A , 6n$ 200n$

V? VC BN< PLSE 08 8 0n$ A , 16.n$ +00n$

.ALTE#

.PA#AM A=n$ ,=6n$

.ALTE#

.PA#AM A=6n$ ,=Dn$

.EN!i5>m$1.da%

.end! TT

.!i5 HH F 'a$% *re$$

.*aram TO7G9=200 ...

.in!"de >"$r>!i5>m$1.da%

.end! HH

( 'i!e:

>"$r>!i5>m$1.da%.mde! n@an

3 !e8e!=1? ...

3 %)=%)G9


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Output Cont!olOutput Cont!ol

print

measure


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.P%I#.P%I#

s*ntax

P0!-T ant*pe ov'


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.P%I#.P%I#

III !D/?ds curve temp8% nmos +8@% l8%G dbp%'' III

option nomod nopage acct +l scale8%Ku co8'3

temp 3@inc AhomeAusers3A.*usunAmodelAmodelFt*p

param paFvgs8G%v

dc vds %v G@v %@v

vds vds gnd

vgs vg gnd paFvgsvbb vbb gnd /'%v

mnmos vds vg gnd vbb g +8%> l8%3

r' vds vsFim '%.

r3 vsFim gnd '%.

print i$mnmos(

end

Input file

Print value of current

through element mnmos


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.P%I#.P%I#

III id/vds curve temp8% nmos +8@% l8%G dbp%'' III

IIIIII dc transfer curves tnom8 3@%%% temp8 3@%%%

IIIIII

x

volt current

mnmos

% '%%%%p

@%%%%%%%m G3Hu'%%%%% K%KHGGu

'@%%%% ''G'@Ku

3%%%%% '3G@H@u

3@%%%% '>G%@u

%%%%% 'K@G%u

@%%%% 'G%@uG%%%%% 'G3%@@Ku

G@%%%% 'G%G@u

*

IIIII 1ob concluded

Output file

(.lis)


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.(E'S+%E.(E'S+%E

ME)SU0E

Print user/defined electrical specifications of a circuit ME)SU0E is a post processor

Seven 7undamental Measurement modes2

0ise 7all Dela*

)verage 0MS Min Max & Pea./to/Pea.

7ind/9hen

E6uation Evaluation

Derivative Evaluation

!ntegral Evaluation

0elative Error


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.(E'S+%E.(E'S+%E

ME)SU0E


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.(E'S+%E.(E'S+%E

ME)SU0E


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.(E'S+%E.(E'S+%E

7!-D/9:E- )llo+s an* independent variables $time fre6 parameter( b* using

9:E- s*ntax or an* dependent variables $voltage current etc( b*

using 7!-D/9:E-s*ntax to be measured +hen some specific event

occurs

ME)SU0E


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.(E'S+%E.(E'S+%E

E6uation Evaluation

Use this statement to evaluate an e6uation that can be a functionof the results of previous Measure statements

The e6uation MUST -,T be a function of node voltages or

branch currents

ME)SU0E


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Po"e! Sou!cesPo"e! Sou!ces

!ndependent Sources


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Independent Sou!ces$ ,C- 'CIndependent Sou!ces$ ,C- 'C

S*ntax ?xxx nJ n/


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Independent Sou!ces$ !ansientIndependent Sou!ces$ !ansient

Time ?ar*ing $Transient(

PULSE v' v3


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Independent Sou!ces$ P3Independent Sou!ces$ P3

Piece/9ise Linear

P9L t' v'


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Independent !ansient Sou!cesIndependent !ansient Sou!ces$$ SI#- (ixedSI#- (ixed

S!-

S!- vo va


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'nal4sis'nal4sis

DC anal*sis

)C anal*sis

Transient anal*sis

Temperature anal*sis


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'nal4sis t4pes'nal4sis t4pes

T*pes and ,rder of Execution

DC ,perating $4ias( Point 7irst and most important 1ob is to determine the DC stead* state

response $called the DC operating point(

DC 4ias Point & DC S+eep )nal*sis

DC ,P T7 SE-S

)C 4ias Point & )C 7re6uenc* S+eep )nal*sis )C -ET -oise Distortion

Transient 4ias Point & Transient S+eep )nal*sis

Trans 7ourier ,P


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.,C.,C

DC Statement / DC S+eep

DC var' start' stop' incr'


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.,C.,C

Examples

.,C I# 0.56 6.0 0.56S+eep ?!- from 3@ to @v b* 3@v increments

.,C ,S 0 0 .6 GS 0 6

S+eep ?DS from % to '%v b* @ incr at ?5S values of % ' 3 G & @v

.,C E(P 766 56 0S+eep TEMP from /@@C to '3@C in '% degree C increments

.,C x1al 8 08 .68 S3EEP E(P I# 6 56 56

DC anal*sis performed at each temperature value Linear TEMP s+eep

from 3@ to '3@ $@ points( +hile s+eeping a resistor value called Bxval

from '" to '%" in @"


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.OP & .F.OP & .F

,P


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'C 'nal4sis'C 'nal4sis

)nal*#e 7re6uenc* 0esponse )fter doing ,P anal*sis :SP!CE conducting )C anal*sis of the

nonlinear device such as M,S7ET at the DC operating point !ncludes +hite -oise Calculation considering resistors semiconductor

device

7lic.er noise estimation

)C )nal*sis Statements

)C Compute output variables as a function of fre6uenc* -,!SE -oise )nal*sis

D!ST, Distortion )nal*sis

-ET -et+or. anal*sis

S)MPLE Sampling -oise

)C S+eep Statements2 7re6uenc* Element ?alue Temperature Model parameter ?alue

0andom S+eep $Monte Carlo( ,ptimi#ation and )C Design )nal*sis


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.'C.'C

)C S+eep )C t*pe np fstart fstop )C t*pe np fstart fstop


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.'C.'C

Examples

)C DEC '% '" '%%ME5 7re6 s+eep '% points per decade for '":# to '%%M:#

Total )C anal*sis points2 @'

4ecause 7re6 range is '.W'%%M log$'%%MA'"( 8 @ decades

and '% points per decade

)C L!- '%% ' '%%h# Linear S+eep '%% points from 'h# to '%%:#

Use L!- +hen the 7re6 range is narro+

Mixed Command

)C DEC '% ' '%" S9EEP cload L!- 3% 'pf '%pf

)C anal*sis for each value of cload +ith a linear s+eep of cload bet+een'pf and '%pf $3% points( S+eeping fre6uenc* '% points per decade from

':# to '%":# $G'point fre6(


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!ansient 'nal4sis!ansient 'nal4sis

Transient )nal*sis Statements

Compute circuit solution as a function of time over a time range T0)- Statement Can be Used for2

Transient ,perating Point $eg ,P 3%n(

Transient Temperature S+eep

Transient Monte Carlo )nal*sis $random s+eep( Transient Parameter S+eep

Transient ,ptimi#ation

Ta.ing ,P results as a initial value for Transient )nal*sis


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.%'#.%'#

T0)- Statement

T0)- tincr' tstop'


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.%'#.%'#

tincr' PrintingAplotting increment for printer output and the suggested computing increment for the postprocessor

tstop' Time at +hich the transient anal*sis stops incrementing b*tincr' var -ame of an independent voltage or current source

an* element or model parameter or the .e*+ord TEMP pstart Starting voltage current element model parameter

or temperature values

pstop 7inal voltage current element model parameteror temperature values pincr ?oltage current element model parameter

or temperature increment values ST)0T Time at +hich printingAplotting begins S9EEP !ndicates a second s+eep is specified on the T0)- statement

np -umber of points per decade $or depending on the preceding .e*+ord( D)T)8datanm Datanm is the reference name of a T0)- statement

t*pe Can be an* of the follo+ing .e*+ords2 DEC ,CT L!- P,!


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.%'#.%'#

Examples

T0)- 'ns '%%ns Transient anal*sis is made and printed ever* 'ns for '%%ns

T0)- 'ns 3@ns 'ns G%ns ST)0T8'%ns

Calculation is made ever* 'ns for the first 3@ns and then ever* 'ns

until G%ns The printing and plotting begin at '%ns

T0)- '%ns 'us S9EEP cload P,! 'pf @pf '%pf Calculation is made ever* '%ns for 'us at three cload $P,! / Points

of !nterests(


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ExamplesExamples

Transient )nal*sis

)C )nal*sis


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!ansient 'nal4sis!ansient 'nal4sis((( SPICE Ne%!i$% 'i!e 'r


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'C 'nal4sis'C 'nal4sis

((( SPICE Ne%!i$% 'i!e 'r y"$"n>%!>mde!>!i5m$00%22a.$* CMOS1

.end

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