Device model files 2 getting started with hspice a tutorial device model files you are to establish your own directory and collection of device models for mosfets and other devices. Included in this manual are detailed command descriptions, startup option definitions, and a pspice your microsoft windows users guide. Hspice tutorial university of california, berkeley. For information on how to perform searches across multiple pdf documents, see the hspice release notes. A complex expression must be enclosed in single quotes in order to invoke the star hspice algebraic processor. Tips for using hspice university of california, berkeley. The syntax for hspice is not welldefined, at least not welldocumented. The linked sites, articles and presented information are provided as a useful insight to help you decide on the type of engineering expert you might need.
Spice reads in a list of circuit nodes and the elements between. Pdf documentation set user manuals for hspice and rf flow. The page numbers in the rest of this document refer to this manual. Hspice simulation and analysis user guide electrical and. The current through the voltage source is negative because positive current is defined as. I know that i can define nand and inverter as my subcircuits. Be sure that a complete set of parameters is entered in the correct sequence before. Netlist spice netlist text file containing circuit description. For details of circuit descriptions and the process of simulating a circuit, see the spice3 users manual.
You should be familiar with the manual page for nutmeg1 before reading this manual page. Full details are in the metasoftware hspice manual. In this article and the next, spice subcircuit models are explained, using mosfets as examples. Recommended spectre monte carlo modeling methodology example 2 of 12 the designers guide community 1 example the monte carlo modeling methodology of the spectre circuit simulator is explained by way of a simple example. Turning to the original spice, at least we find something.
Passive devices diodes jfet and mesfet devices bjt devices inside this manual this manual contains the chapters described below. All this means is that when we are plotting data, the subckt containing a pmos looks like a. Parameters in star hspice are names that have associated numeric values. However, if it is defined in a spice subckt, then that parameter will be meaningless in the circuit levels above. Tran statements can use external and inline data provided in. You can use any of the following methods to define parameters.
Spectre circuit simulator user guide columbia university. The commands available are a superset of those available for nutmeg only the additional commands available in spice3 are described here. Chapter 11, using hspice with hspice rf describes how various analysis features differ in hspice rf as compared to standard hspice. Recommended spectre monte carlo modeling methodology. Hspice subckt naming convention electrical engineering. Appendmodel command even if the mosfet model is embedded in a subcircuit. We will also use one piece of spectre magic, called the inline statement. Subckt is a macro function, meaning that when encountered it gets substituted. Cadence tutorial part two by kerwin johnson version. Using dc initialization and operating point statements.
Hspice simulation and analysis user guide version y2006. Op statement is included in an input file, the dc operating point of the circuit is calculated. Alter sequence for inline case analysisparameter defines a parameterend terminates any alters and the simulation. Element, instance, and subcircuit naming conventions. Ltspice is node unlimited, incredibly easy to learn and can be used to simulate most of the analogue components from linear technology as well as discrete and passive components. An array of parameter values can be either inline in the simulation. Subckt command in spice electrical engineering stack. Commands and control options provides reference information for hspice and hspice rf commands and options. Related documents the following documents pertain to. Dont worry if it takes a couple seconds for hspice to run, but as long as the command completes successfully youll know because it will say hspice job. Computer modeling of electronic circuits with ltspice phys3360aep3630 lecture 2021.
Using isomorphic analyses in subckt blocks in hspice. The inline statement precedes the word subckt and it makes the instantiated element within the subckt with the same name look like the entire subckt for the purposes of probing. The example is a circuit that consists of a pair of resistors whose values exhibit random variations. Hspice basics an input netlist file must be created to begin the design entry and simulation process. Cadence tutorial 7 generating hspice netlist from schematic ee577b fall 98 in this tutorial, i will show how to generate hspice netlist from schematic. The electrical yield refers to the number of parts. Pspice is available on the pcs in the seas pc computing labs and hspice is available on eniac or pender. Chapter 10 analyzing electrical yields class home pages. Data statements basic components resistors capacitors and inductors.
Running the spice reader from cadence analog design environment. Computer modeling of electronic circuits with ltspice. Macro statement on page 229 for further information on subcircuit construction. My question is that is any other way so that i can directly use the above written netlist or write the subckts in other file and import them. This manual describes the starhspice circuit and device simulation software and how to use it. Hspice simulation and analysis user guide version x2005. This manual generally follows the conventions used in the microsoft windows users guide. Chapter 7, library encryption describes the synopsys library encryptor and how to use it to protect your intellectual property. Brief introduction to hspice simulation wojciech giziewicz 1 introduction this document is based on one written by ihsan djomehri, spring 1999. Macro statement in the hspice simulation and analysis user guide.
This node is always available in the simulation device models. Spectre circuit simulator user guide january 2004 5 product version 5. Outline declaration voltage source circuit statement subckt of circuit statement measure simulation advanced reliable systems lab. Cadence tutorial 7 generating hspice netlist from schematic. A simple expression consists of a single parameter name.
You can just ignore these and they will automatically be overwritten with each run through the compiler. This provides access to all the hspice manuals with the exception of the avanwaves user guide which is available in pdf. With over 500,000 copies distributed so far, many users have reported. If you are just starting out, you might want to copy a demo file to your own directory and edit the netlist to create your own circuit. Hspice applications manual, and hspice command reference. For more specific details and examples refer to the relevant manual. In the previous article and in the article before that, examples of spice device models were explained. Tran commands can use external and inline data provided in. Spice quick reference sheet the general anatomy of a. Syntax notation the meaning of a parameter may depend on its location.
Syntax notation the meaning of a parameter may depend on its location in the statement. Reference manual multisim spice this manual documents spicebased circuit syntax that is supported by multisims netlist. Hspice applications manual university of rochester. An inline subcircuit is a special case where one of the instantiated devices or models. Hsice simulation guide penn state college of engineering.
The electrical and electronic experts investigative engineering consultants and associates. A subcircuit definition contains spice circuit elements, has a name and specifies the circuit nodes that connect it to the main circuit. Spectre circuit simulator user guide electrical engineering. The parameter keeps the assigned value unless there is a later definition that changes its value, or it is assigned a new value by an algebraic expression during simulation. Audience this manual is intended for design engineers who use star hspice to develop, test, analyze, and modify circuit designs.
Op statement to produce an operating point during a transient analysis. Using parameters in simulation parameter definition. Awaves is a program that allows you to graphically plot the results of the analysis that hspice did. But in this approach i need to wirte down their code in the subckt part which will increase the complexity of netlist. Awaves is a program that allows you to graphically plot the results of the hspice analysis. Introduction simulation program with integrated circuit emphasis spice is a simulation tool used by engineers throughout the. In this document only coaxial cables and twinlead cables are described. We do not provide such technical support for general circuit simulations that are not for the evaluation of ltc products. However, you will need to explicitly command hspice to generate the extra. In case of a naming conflict, the local parameters take identifier description. Hspice provides facilities for modelling lossless ideal and lossy transmission lines. Op statement can appear in a star hspice simulation. For more details on hspice input file format, please refer to the.
Tutorial setup tutorial 1,2,4 are necessary to start this tutorial. This manual contains the reference material needed when working with special circuit analyses in pspice. A name field must begin with a letter a through z and cannot contain any. Hspice also has specific file naming conventions to indicate the function of each file. Elements and device models describes standard models you can use when simulating your circuit designs in hspice, including passive devices, diodes, jfet and mesfet devices, and bjt devices. You have to explicitly tell hspice to generate the extra. Originally developed at berkeley in the late 60s and early 70s, spice has evolved into one of the tools of choice for circuit simulation. It also provides facilities to model numerous different physical layouts of the conductors forming the transmission lines. Recommended spectre monte carlo modeling methodology resistor modeling 4 of 12 the designers guide community finally, a parameter rshspnom is declared, whose value represents the nominal value of the resistor sheet resistance. For more sophisticated analyses consult the hspice users manual.
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