Starhspice starts any analysis with known nodal voltages or initial estimates for unknown voltages and. Pdf version programming a circuit simulation with spice is much like programming in any other computer language. Tran tiner tstop startstval where tiner is the timestep, tstop is the final time value and stval is the initial time value. Starhspice optimization is the result of more than ten years of research in both the optimizing algorithms and user interface. Chapter 6 dc initialization and point analysis class home pages. Chapter 10 looks at the advanced features of the mixedsignal circuit simulator, such as the spice variables and analog options. Mos device aging analysis with hspice and customsim. Spice simulation program with integrated circuit emphasis is a generalpurpose, opensource analog electronic circuit simulator. Spectre circuit simulator user guide columbia university. Initialization is fundamental to the operation of simulation. The entries are names that are associated with numeric values. A simplied introduction to circuit simulation using spice opus 5 a.
Spectre circuit simulator user guide january 2004 5 product version 5. For more sophisticated analyses consult the hspice. Hspice options for details about the hspice simulators global parameters and options, see the hspice. A simplied introduction to circuit simulation using spice opus. All of these workstations share a common file server and account database. Key analysis step is to plug in the hybrid modelsmall signal parameters determined from biasing all independent sources are set to zero r s r g r d vin vout vbias i d 1 solve for bias current id 2 calculate small signal parameters such as gm, ro 3 solve for small signal response using transistor hybrid. Overview of starhspice data flow avanwaves graph and. It is a program used in integrated circuit and boardlevel design to check the integrity of circuit designs and to predict circuit behavior. Design of analog mos lsi lecture 3 small signal modeling of. Specifying simulation input and controls understanding the data flow starhspice manual, release 1998. Simulate the schematic with hspice in standalone mode. For more details on hspice input file format, please refer to the. Timing analysis basic timing, jitter, and signal integrity.
Mos device aging analysis with hspice and customsim 4 figure 3. Whether youre a student or professional, spice will allow you to predict the behavior of your electronic circuits accurately. The ac small signal analysis portion of starhspice computes see figure 91. Design of analog mos lsi lecture 3 small signal modeling. The objective of measurement is to experimentally confirm the specifications. Hspice simulation and analysis user guide rudrajit. The lines represent the simulated curves, the dots represent the data points. Analog artist with hspice for the cdk ncsu eda wiki.
Im doing schematic and simulation of opamp circuit using synopsys hspice 90nm technology. Hspice now accepts input line lengths of 1024 characters. Chapter 9 ac sweep and signal analysis class home pages. Hspice is a fairly straightforward simulation tool, provided you take the time to read the information presented in this package. Dc statement using other dc analysis statements starhspice manual, release 1998. The contents of this file appear later in this section. Now that we have a handle on all of the new buttons and features, follow along with the steps below to run your first ac sweep simulation. Synopsys finesim spice cuts analog simulation time by 3x. Sometimes its easier to do certain kinds of analysis manually in hspce than it is to figure out which cadence menu option will give you the desired result. To run hspice manually, follow the following procedure. Runs periodic ac noise analysis on nonautonomous circuits in a largesignal periodic steady. Two important mechanisms that contribute to such degradation are the hot carrier injection hci and the bias temperature instability bti.
Hspice is just a program that takes in a netlist a simple text. Hspice simulation and analysis user guide version z2007. To plot the appropriate data, open your hspice design and choose the analysis and nodes of interest from the results browser. With a userdefined optimization program and a known circuit topology, starhspice automatically selects the design components and model parameters to meet dc, ac, and transient electrical specifications. Global parameters use this entry to specify the global parameters that will be used within the hspice analysis context. Hspice simulation and analysis user guide version y2006. The following are the control options used in polezero analysis. The hspice documentation set the hspice documentation set this manual is a part of the hspice documentation set, which includes the following manuals. Hspice is an analysis tool to study circuits ranging from diode protection networks to bipolar transistor amplifiers to logic gates. Inside this manual this manual contains the chapters described below.
If you are using windows os, you have to setup xwindow system. Chapter 8 describes how to create your own simulationready components. Ic statement to provide both an initial guess and final solution to selected nodes within the circuit. Authors bogdan tudor joddy wang weidong liu hany elhak synopsys abstract in mos integrated circuits, device aging is mainly due to the degradation of the gate dielectric and of the interface between gate dielectric and silicon over time. Tran perform a transient analysis differential equation solver see p. Analysis frequency domain analysis s determination of steadystate response of the circuit when sinusoidal excitation is applied mine the frequency response of the circuit. The objective of simulation is to verify and optimize the design. Hspice tutorial university of california, berkeley.
For descriptions of the other manuals in the hspice documentation set, see the next section, the hspice. Hspice simulation internal timestep too small in transient. Were going to go through a sample hspice simulation and analysis in awaves in order to teach you how to run these programs. For descriptions of the other manuals in the hspice documentation set, see the next section, the. Oct 23, 2018 finesim spice complements industry standard hspice simulation to provide a range of accuracy and performance that is wellsuited for large, highspeed analog circuits, including adc, dac, pmic, pll, and serdes. If type variation is used, the np number of points is speci. Determination of dc operating point values for all nodes and sources. Hspice is the industrys gold standard for accurate circuit simulation and offers foundrycertified mos device models with stateoftheart simulation and analysis algorithms. New parallelpartitioning and matrixsolver technology, along with advanced multilevel newton and rc reduction algorithms, enable.
With a userdefined optimization program and a known circuit topology, star hspice automatically selects the design components and model parameters to meet dc, ac, and transient electrical specifications. Simulation and analysis describes how to use hspice to simulate and analyze your circuit designs, and includes simulation hspice reference hspice reference. Capnxxx for nodal capacitance output, hspice prints or plots the capacitance of the specified node nxxxx. Star hspice optimization is the result of more than ten years of research in both the optimizing algorithms and user interface. Tran 1n 300n definition of analysis type d, transient, a, at begin of analysis. Introduction to hspice simulation program with integrated circuit emphasis developed in 1970s at berkeley many commercial versions are available hspice is a robust industry standard has many enhancements that we will use written in fortran for punchcard machines circuits elements are called cards complete description is called a spice deck. A text window will then show the hspice netlist file for your circuit. Tips for using hspice university of california, berkeley. Dc statement using other dc analysis statements star hspice manual, release 1998.
V 20180315 s p i s i m l l c v a nc ouve r, w a 98683, u s a t e l. Hspice generally has better convergence than spice3 and, because it is a commercial product from metasoftware, is better supported. Ah 310323 simulation and measurement considerations objectives. For specific instructions on a particular workstation. Chapter 9 provides help when troubleshooting simulation problems.
1413 580 574 768 28 553 1374 1157 437 783 601 641 907 259 663 1528 73 975 1304 1181 498 1339 908 148 1175 821 750 894 299 794 585 713 714 1168 957 1452 1192 1142 960 392 145 1185 616 1206 63 618 731 454