Hspice measure. ``HSPICE measure tool .

Hspice measure timing of the shape kT, T Optimization of 16-bit RCA using HSPICE (at the FA level) SPICE stands for Simulation Program with Intergrated Circuit Emphesis, which is a transistor level circuit simulator developed by U. imulation . Learn how to write and run Hspice files for spice simulation on Sun/Unix platforms. 23 4. means Statement Editor" in the section "examples of ". 5 . measure for each edge. Joined Aug 2, 2005 Messages 351 Helped 15 Reputation 30 Reaction score 7 Trophy points 1,298 Location Shanghai Visit site I think, . I am assuming you are measuring charge, on what parameters you are measuring charge. print ac CAP(5) CAP(6) Nov 9, 2005 #6 F. e. measure hspice Check out Avantis hspice guide. end结束，再在命令行中运行 hspice-meas measure_file -i wavefile [-o outputfile] 即可以对已经仿真输出的文件进行测量，而不用重新再运行网表。 If this is the case, you should've obtained a set of . Part and Inventory Search. 들어가기 전에 Meas에서 고려하면 좋은 것을 적어 놓는다. Facebook Twitter Contact us. 2. LIB and . param var1=v1min var2=v2min . Now from above i get arithmetic evaluation error, i cant compare measured (vol1--getting measured from . Joined Feb 19, 2006 how to measure voltage ina time period using hspice. Those that refer to a point along the abscissa (the independent variable plotted along the horizontal axis, i. 6 RISE=1 TARG V(out) VAL=0. measure a4 <measure_spec> It annoys me that HSPICE outputs the table (with the . Started by sbtauseef; Nov 2, 2023; Replies: 1; Analog Circuit Design. print the signal in hspice and plot its eye with matlab, before this you must write a matlab script first. 2 25-9 Examining the FFT Output Star-Hspice prints the results of the FFT analysis in a tabular format in the . 06, June 2015 Phase Margin Measurement in HSPICE. ms#, or . book : hspice. 2ms where in this case 0. In this document, we will introduce HSPICE, a SPICE is a general purpose analog electronic circuit simulator. Behavioral Voltage Source See “Voltage and Current Controlled Elements” in the HSPICE Simulation and Analysis User Guide. measure dc vth_p avg lv9(mp0) But the result FAQ: Capacitance of MOS cap in spice What is the definition of capacitance of MOS cap in spice? The capacitance of MOS cap in spice refers to the measure of the ability of a metal-oxide-semiconductor capacitor to store an electric charge when a voltage is applied. holddreams Full Member level 6. hello i am making a circuit of VCO. The circuit result targets are part of the . I would like to get at each rising edge of the clock (i. sp" Check hspice documentation, you are looking for the the . 0' rise=1 + pushout_per=0. MEASURE DC MAXVD MAX V(VD). . hspice measurement for switching time. STEP commands, which I believe are common to both environments. Joined Jul 17, 2014 Messages 27 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Location Jaipur, Rajasthan, India Visit site As mentioned by @analogsystemsrf, the capacitance varies, so a . PRINT statements, add your measurement statements to automatically calculate delay or other useful metrics. e. Similar threads. •FALL=LAST, measurement occurs the last time the WHEN condition is true, for a falling signal. LVS for HSPICE netlist. all assistance is appreciated greatly. after opening the If "FROM value TO value" is not described, all times are in the measurement range. 5v to one input and -0. Ideal Op-Amp See “Ideal Op-Amp” in the HSPICE Simulation and Analysis User Guide. 1 10G . Analog circuit simulation A. MEASURE result, and writes "FAILED" in the output listing file. And it worked successfully and I got frequency value that is quite close to approx value from plot The relation between current and charge has to do with Time parameter. # header. Make Schematic and Symbol for your circuit Please refer to tutorial 1 (section C/D) 2. if is checked before simulation starts). Joined Nov 13, 2005 Messages 190 Helped 3 Reputation 6 Reaction score 1 Trophy points 1,298 Visit site Activity points 0 total power hspice code. sp Then look in the *. PZ V(B) Vpz I expect the pole to be at 1MHz but spice gives me extremely weird results: poles (rad/sec) poles ( jitter & hspice How can i measure the output frequency and jitter of an oscillator using HSPICE , is it possible to get a graph of frequency verses time using transient analysis? May 9, 2008 #2 H. opt plotwinsize=0 to disable waveform Measure the clock-to-q delay under these conditions and consider that to be the nominal clock-to-q delay. Started by T-14; Sep 26, 2024; Replies: 2; Analog Integrated Circuit (IC) Design, Layout and more. engronger Member level 2. inc should contains at least hspice statements like ". Thread starter lokeshgarg; Start date Jun 25, 2011; Status Not open for further replies. measure a3 <measure_spec> . measure，可简写为. 1. title为起点. , "+mycalnetid"), then enter your passphrase. Mar 10, 2011 #1 E. ch26 9 Thu Jul 23 19:10:43 1998 Performing FFT Spectrum Analysis Examining the FFT Output Star-Hspice Manual, Release 1998. CHECK RISE . This would be a huge work when I use monte carlo simulation, and integrated into the core of Star-Hspice, resulting in optimum efficiency. To measure Power Dissipation Characteristics: Add a measure statement to your spice netlist to measure average power: The Hspice Deck Using Built-in Optimization. 4 v courier italic Arguments appear in this font when the value of an argument is a string. 元件语句R1 1 2 1K 分别表示器件类型，连接的节点 integrated into the core of Star-Hspice, resulting in optimum efficiency. ” HSPICE now accepts input line lengths of 1024 characters. HSPICE® User Guide: Advanced Analog Simulation and Analysis Version J-2014. measure TRAN td_r TRIG v(out2) val='vdd/2' fall=2 eye diagram with hspice lots of methods 1. FFT statement. com ABSTRACT This paper demonstrates the modeling of hook shaped the Hspice transient analysis is performed on. For a large circuit with many inputs, you need to make sure you measure I want to do some integration in Hspice . Thread starter phuang; Start date Apr 23, 2012; Status Not open for further replies. measure’, ’. Joined Mar 2, 2011 Messages 22 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Location Philippines Conventions Star-Hspice User Guide, Release 2001. I use this approach to find output resistance of complex blocks. B. plot’ ) <alter> $ alternative conditions you wish to run Hi, i´m trying to obtain a csv output file in HSPICE. MEASURE vtsat_sp find VTH(MN2) when v(vg1)=0. Analog circuit simulation. Last edited: Mar 2, 2014. The output will be in a separate continuous measures file. 5 and I want to measure temp=20 Va=? and temp=150 Va=? how to write out . Members online 4 Guests online 800 How does one measure impedance/resistance using SPICE? I have access to regular SPICE(MacSpice) and HSpice. MEASURE statements. It's redundant anyway. measure tran nanddos1A +TRIG v(A) VAL='vdd*0. 1mm: Measuring DC motor resistance . i have given +0. Sponsor. sw0 file . The setup can be more labour intensive, however. To measure the slope of the DC characteristic, use the Measurement Tool from the Tools menu. lib>" # library. 69. INCLUDE, . Mar 4, 2014 #8 M. -o output_file Name of the output file. 语句顺 1-4 Star-Hspice Quick Reference Guide Input Netlist File For a complete description of HSPICE installation, system configuration, setup and basic operation, please refer to the Star-Hspice Manual, “Volume 1—Simulation and Analysis. Thread starter Goldeneagle; Start date May 29, 2010; Status Not open for further replies. com Activity points 17,490 rmanalo said: This allows using transient measure statements to measure the "DC" trip points since time unit is milli-seconds. It has a eye function 2. measure tran integ (v(1)-v(2))*idd from=20n to=50n but I cannot get it to work. HSPICE Transient Analysis: Below is a spice deck for characterizing a CMOS inverter. The most powerful feature of the Star-Hspice approach is its incremental I have designed a differential amplifier on Hspice and simulated it to find common mode gain. mostafah67 Member level 1. 1ms is the period of input voltage. Hi, I want to measure Max delay of a full adder,So I use . Feb 21, 2010 #2 jardila Junior Member level 2. The objective is to measure . 2v. Joined Feb 8, 2008 Messages 140 Helped 20 Reputation 40 Reaction score 7 LAST HSPICE measures when the last CROSS, FALL, or RISE event occurs. ankitgarg0312 Full Member level 2. 0ns) . eeAmateur Newbie level 3. There is another, more elegant way to find CLOAD using the built-in optimizer of Hspice, one of the commercial versions of Spice. lis. because both inputs should vary simultaneously but HSPICE generates different . Gm=di0/dvi for achieve this value in one transcoundactor circuit what i should do? because we should measure dI(out) /dVin but how we can do it? Feb 1, 2010 #2 A. Just wondering if someone could be able to help me to use FindWhen measure for DC analysis with spectre syntax. MEASURE commands. Welcome to EDABoard. Tran analysis should be used for output swing calculation. Dec 6, 2005 #5 shaq I've built a ripple-carry adder in Cadence and I need to measure the capacitance at various nodes internal to my design (load capacitance at gate outputs). Sidek2 1Silterra Malaysia Sdn. measure() command. Aug 31, 2004 #3 wylee Full Member level 1. iv Contents. hspice current measure hspice not support measure large current, some design have leakage cuurent, we usuall trace it from Top (becuase analog have multi power ) if hspice can set some current probe condition , measure some "large current" for examples Top - A - A1 B - B1 --B2-B3 maybe leakage on B3 or other , but I muse "add resistor =1m" HSPICE® Reference Manual: Commands and Control Options Version H-2013. MEAS and . 1ms to=0. Apr 23, 2012 #1 P. tran. The hspice gave me the good answer : deriv_sqrt_id_max= 5. how to use measure command in hspice for DC analysis. Custom WaveView 4 Toolboxes and Assistants Custom WaveView’s toolboxes are provided to simplify specific measurements for a variety of common activities in waveform analysis. for various control voltages i have a different frequencis. meas ac freq3db when VDB(OUT) = - 3 How to Sign In as a SPA. It is famous for its accuracy and it's a de-facto standard upon which most semiconductor companies depend. 7847E-03 at= 1. CHECK SETUP LAST HSPICE measures when the last CROSS, FALL, or RISE event occurs. Joined Mar 25, 2004 Messages 170 Helped 4 Reputation 8 . The hspice shows "syntax error" too. Online statistics. Joined May 28, 2007 Messages 43 Helped 8 Reputation 16 Reaction score 3 Trophy points 1,288 Location Electronic City !! :-) hspice. measure lines in my HSPICE netlist:. measure to find the sqrt(id(mn1)) in that point. TRAN analysis will be a bit more involved, but since this is SPICE world you can measure it easily in . bastos . this example gives u direct VI characterstics of subckt(MOS). measure tran clk_to_q + trig v(CK) val='v(vdd)/2. u will have the option to give rising and falling seperately. Apr 20, 2004 #4 E. I didn't use your models, or your HSPICE measures the delay from the second rising edge of the voltage at node 1 to the second falling edge of node 2. Actually, from -3dB, I meant -3dB of V(i) by assuming that . The DC current divider circuit at the bottom of this webpage seems to be one method. 0*t_setup+trf_data+1fs', 1. lib <model. 5' td=5ns cross=1 . So my question, is it my d-flip flop got problem or my code? Is there any way to maintain the output voltage so that it stays at high hspice. alter command is very useful for hspice simulation, it can replace the temp, power_val, model corner and other parameters define, below is a sample of simulation netlist: . M. You can drag the marker and read off the corresponding slope values of v(out). C. It puts the integrated noise in the output *. Joined Jun 15, 2017 Messages 1 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Visit site Activity points 13 Measurement Mode hspice -meas measure_file-i wavefile-o [output_file] Help Mode hspice [-h] [-doc] [-help] [-v] Argument Descriptions-i input_file Specifies the input netlist file name. tran sweep many temperature and measure it but If only use dc sweep temp like this . measure ac hspice What happens ? It fails on both measurements (min_phase and phase_margin)? I've already used this type of measurements several times. S. hspice probe vth Hi, You can obtain the Vth directly from de I-V curves. now i want to find the slope of F vs V curve with the help of hspice command. measure measurements - one for each step of DC analysis. Jun 25, 2011 #1 L. I realize the design is digital, but this seems to be a more appropriate forum for capacitance questions. Include the . you can read that file in waveform viewer. Try to help me. vicm vicm vss 1350m vip vip vicm dc=0 ac=0. Joined Sep 17, 2009 Messages 23 Helped 3 Reputation 6 Reaction score 2 Trophy points plot gm in hspice Hi. HSPICE appends the extension . You labeled the nodes Vin and Vout, and you are using the output node correctly (V(Vout)), but not the input node ((Vin) instead of V(Vin)). you can name your measurement in your netlist and write how to measure gm try this in Hspice. measure statement from top) values (i. Status Not open for further replies. HSPICE’s A. Mar 25, 2015 #1 O. After doing more digging I was able to label the nets within my extracted hspice site:edaboard. You also forgot the asterisk for multiplication: 0. alter as hspice allows two voltage sweeps ( This document contains several HSPICE examples demonstrating circuit analysis techniques, including: 1) Voltage divider, subcircuit, and calling subcircuit simulations; 2) Switching circuits using transmission line gates; 3) Pulse and triangle wave generator circuits; 4) Dependent source examples using VCCS and CCVS; 5) Ideal transformer and rectifier with In the spirit of 'thorough documentation', we have included a description of the hSpice output file formats that we support (9601,2001 and ASCII) at hSpice Output We hope you download and use this parser, and we are also eager to integrate features from the community. jordan76 Full Member level 3. i want to calculate/measure differential output and gain of a simple differential amplifier. Measurement is performed when the last CROSS, FALL, or RISE event occurs. measure script ? Coming back to my original question, you can put . alter. MEASURE DC SNM param='1/sqrt(2)*MAXVD'. In this i got the frequency for various control voltages with the help of . 2 Thanks in advance. lis file, based on the parameters in the . measure statement is evaluated while simulation is going on whereas . MEASURE works like how we perform AC analysis and taking approx value. Anyone can tell me the right syntax? Thank you very much! teraze . bandwidth calcul hspice Because: 1. Oct 21, 2007 #1 (used . measure语句在电路 hspice编写反相器并进行瞬态仿真. mt0 file i. These files arn't very useful either as the data is hard to read and already exits in a nicely formated way in the . lib 用于设置工艺库文件，后面添加工艺库所在的位置，用单引号引用，后面加TT. Dec 6, 2013 #1 W. measure statements in your HSPICE deck. 2GlobalFoundries, Inc. measure" simulation". Joined Jun 2, 2013 Messages 39 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 I think the . sp文件。 第一行为该文件的名字，可以随便定义，一般以. Thread starter oly; Start date Mar 25, 2015; Status Not open for further replies. Apr 8, 2006 #3 H. 00 1 totaly i need to obtain total load capacitance of inverter and i don't know what is this capacitance is that hspice measures. In this tutorial, we will again use the HSPICE on Engineering Workstation To measure the lower and upper 3-dB frequency, as well as the 3-dB bandwidth, use the Measurement Tool from the Tools menu. 3. Oct 21, 2007 #2 E. Kulim Hi-Tech Park,09000 Kulim, Kedah, Malaysia 2Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia *philip_tan@silterra. 2 4-1 Chapter 4 Specifying Simulation Output Use output format statements and variables to display steady state, frequency, and time domain simulation results. III. Can anyone suggest me to continue. TRIG: Equation for increase/TARG: Equation for decrease "TRIG: Equation for increase/TARG: Equation for decrease" is a rather complex setup, so we plan to explain how to create the syntax using the ". I designed a hysteresis comparator, and, I wanna measure its positive and negtive trig point and thus the width of the hysteresis window in DC sweep. print P(vdd). There are two basic different types of . i am using HSPICE and cosmos-scope. please help me to measure Gm in one circuit with Hspice. Could In a mosfet there are mosfet templates and for threshold voltage it is LV9(mosfet). Notice: HSpice is case insensitive. Measure는 특정한 값 1개를 뽑는 것이고, Signal 계산과 Variable 계산으로 나뉜다. I. VerilogA block HSPICE measure absolute value. g. 0' rise=1 + targ v(Q) val='v(vdd)/2. op . CROSS = LAST, measurement occurs the last time the WHEN condition is true, for a rising or falling signal. May 29, 2010 #1 G. measure command ? For instance, HSPICE and ELDO use LX7(M0) for the transconductance gm of a MOS transistor. 网表文件的扩展名为. different widths) for DC analysis using HSpice. So I changed V(o) -> mag(Vo) and -3dB -> 10^(-3/20)= 0. csv file from hspice? Jul 4, 2018 #2 pancho_hideboo Advanced Member level 5. Thanks! Kelvin . For Fig. 2) Standard models aren't very suitable for simulating mosfets in 45 nm technology, many effects are not modelled. Extract the time at which your signal crosses in one direction a given threshold level for the nth time. dick_freebird Advanced Member level 7. For measures u can see for diff of timestamp when |vin-vout|=0 for first and 2nd time. Joined Mar 9, 2004 Messages 4 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Visit site Activity points 78 transconductance gm. HSpice Analysis and Optimization Bart Zeydel, Hoang Dao, Xiao-Yan Yu I. meas dc :cry: Dear all, I encounter a problem in sim with hspice 2004. mpig . Use Hspice to plot an amplifier’s open-loop frequency response and be able to measure low frequency gain, gain bandwidth product, phase margin, and gain margin. write a pwl source in hspice netlist such as veye aaa 0 pwl (0 0 100n 100n r) the 100n is the eye width, Here I measure static power for the pattern <1 1 0> as the average power from 692. See the comments which explain how capacitance "c_comp" is measured. Use Hspice to plot the closed-loop transient response of an amplifier, and be able in hspice is it possible to measure jitter of pll or not? qpss noise to calculate the long term jitter. 8: SPICE Simulation CMOS VLSI DesignCMOS VLSI Design 4th Ed. #2: Measuring weld cable resistance with Ohms Law: Measuring Vehicle Sensor Resistance HSPICE ® is the industry Users can readily create accurate S-parameter models based on direct measurements from a network analyzer or the solutions of a field solver. you can use a . warlocklw Newbie level 5. measure to test a signal frequency in Hspice I don't use HSPICE, but I can tell you how to do that in Eldo (not very different). Instructions for HSPICE simulation assignments at the University of California, San Diego. HSPICE supports S-parameter models with an arbitrary number of differential and single-ended ports. ac dec 2001 0. mt0 file, that Hspice have generated. 09, September 2014 After the added . please help me again,thanks . The dialog box The measure output file hold the result from . measure statements into your hspice deck. 2V. sp is the final spice runset Then, run Hspice hspice output. then in cadence go to results browser from the analog environment. measure statement and DERIV keyword (or something like that) to calculate the derivative (or slope) of your parameter 'Id/Vgs'. Call that T_up_n. The output resistance is given by ohms law V/I. 5 ns (-1. youtube. Ideal Transformer See “Ideal Transformer” in the HSPICE Simulation and Analysis User Guide. tf command in order to get output resistance, input resistance, voltage gain, etc Jul 26, 2004 #3 Just connect an AC voltage source to the output and measure the current. PRINT, . Mar 24, 2020 #2 D. 707945. measure TRAN td_f TRIG v(out2) val='vdd/2' rise=2 + TARG v(out3) val='vdd/2' fall=2 . sp file must be a comment line or be left blank. measure pwr AVG P(vdd) FROM=0ns TO=10ns Power in single gate – Connect to separate V DD supply – Be careful about input power. SPICE stands for . If you need to be more precise, use (1-exp(-1))*V(Vin), impose a small timestep (1m of total time, or less), and, optional, add . MEASURE -- Evaluate User-Defined Electrical Quantities . flushrat Full Member level 3. Since Iin is unity, you can read the value of the impedance in Volts as Vin:. what is the purpose of measuring current. measure avg power” statement. END \$\begingroup\$ @aconcernedcitizen Thank you for your comment. Input Netlist File Structure - 1 - Yes, but I think you're getting close: 1. Basically, design a step command such that one run will configure the sources so as to measure differential performance, and the second run will configure them as common-mode. OPTION MEASFORM=1" But when I obtain the report of the simulation, appears this warning . Mar 26, 2004 #5 M. subckt xxx 1 2 R1 1 2 1 . You can use . HSPICE, a popular SPICE simulator shipped by Meta Software Inc. HSPICE doesn't know db(out) Solution:. The next screen will show a drop-down list of all the SPAs you have permission to access. meas tran swing PP v(out) from=0. For dynamic energy I am measuring the average power at each state transition. 09. The normalized magnitude how to plotderivative you can use another tricky way, first generate a delayed VGS(probably by a few ns) and apply this delayed Vgs to another instance of the same cmos device, and then get the corresponding Ids1, then simply use a current controlled voltage source and set approporate coefficient to translate the Ids-Ids1 to certain voltage, the output of this HSPICE Tutorial – AC Simulation We will construct and analyze a NMOS common-source amplifier as the example for AC analysis. I need to analyze a huge ammount of node voltages at some exact time points. Y. Hspice . HSPICE中的测量语句. I want to measure power consumption of different circuits using HSPICE. MEASURE statement fails to execute, Star-Hspice writes 0. 145 HBAC Approach HSPICE® Reference Manual: Commands and Control Options Version K-2015. MEASURE generation. HSpice测量语句还有一些使用技巧： 运行HSpice进行新的测量 Hspice 可以在原有仿真文件的基础上进行测量，此时只需要将所需要测量的语句写在一个文件中并以. ma# files. If you use another flavor of Spice, or a variant like Spectre, there is probably an equivalent way of performing optimization, although the syntax may be slightly ``HSPICE measure tool . The threshold voltage is estimated by linearly extrapolating back to the x-axis. mt# file as the . Now in order to calculate CMRR I need to find differential gain. param for . meas。测 量语句可以用于dc,ac或瞬态分析,常用基本测量内容包括 • 传播延迟 上升,下降延迟时间等。 • 特征值 平均值,均方根,最小,最大,峰-峰值等。 利用基本测量值和用户定义的表达式可以实现复杂的电路 特征测量。 2) Alternate Method to Measure Capacitance using Transient Analysis This example shows how to measure input capacitance on an inverter input using transient analysis. It is a powerful program that is used in IC and board-level design to check the integrity of circuit designs and to predict circuit . dc var1 dec 10 v1min v1max sweep var dec 8 v2min v2max Then I want to get the average value over these 80 DC analysis : . oly Junior Member level 3. Sample Input Netlist File Structure How to calculate leakage and dynamic power for a circuit in Hspice. 자꾸만 까먹어서 Measure 구문에서 수식 등이 들어간 Measure 문법을 정리해 놓는다. HSPICE measures when the last CROSS, FALL, or RISE event occurs. It is a powerful program that <measure> $ measurement statement ( ’. You can drag the marker and read off the corresponding slope values of HSPICE® Reference Manual: Commands and Control Options Version J-2014. I'm doing a transient simulation in HSPICE with an input vector file of N values (N>100). Joined Jun 10, 2003 Messages 715 Helped 113 Reputation 226 Reaction score 27 Trophy points [Help Me Out]how to output one node voltage at an exact time in HSPICE? I don't know how to print one node voltage at an exact time in HSPICE by . Isn't there some equivalent command that you can put in your spectre deck ? thanks. 2 24-7 ‘ Figure 24-2: Fifth-Order Low-Pass Filter Response Pole/Zero Example 2 – Kerwin’s Circuit The following is an HSPICE input file for pole/zero analysis of Kerwin’s circuit9. , the time axis of a . measure such as:. For this . 09, September 2014 Power Measurement HSPICE can measure power – Instantaneous P(t) – Or average P over some interval. Joined Oct 27, 2013 Messages 8 Helped 1 Reputation 2 hspice . This file can be If you need to measure the Y-axis at a specific time point then, for your case, you would use this:. 5 V and ends when the second falling voltage at node 2 is 2. 3) A better approach would be for you to estimate which caps will determine the BW of your circuit (often there are only a few), determine their value by a hand I am running the following DC analysis sweeping 2 parameters : . 6 FALL=1 Run hspice from the command line on your new testbench using the following command (substituting the cell’s name for CELL_NAME): % Measure Inverter Switching Power Dissipation - HSPICE. 3Synopsys, Inc. Thread starter warlocklw; Start date Dec 6, 2013; Status Not open for further replies. Albertll Newbie level 1. measure command. It is well documented in, for example, the HSPICE Applications Manual. measure dc vth_n avg lv9(mn0) . MEASURE statements that refer to a range over the abscissa. Make a perl/python/whatever script that generates a . Measure Inverter Switching Power Dissipation - HSPICE. A. lokeshgarg Newbie level 5. VTH changes in DC from Hspice. meas tving find V(vin) at <time_value> Similarly fot the delayed voltage. lis file. By default, it's 300 points, which can give inaccurate readings. MEASURE idsat find i(vd3) when V(Vg1)=0. for this i did transient analysis now i have a data in . If you want the current through a block defined by a subcircuit, then the current is defined as Ix, followed by the part's designator, a colon, and the pin as defined internally. Make Schematic and Symbol for your circuit. In this document, we will introduce . Please look at the two different circuits in the attached picture. but i have doubt if it is correct or not. (From experience, this transient method in mS gives same result as a straight-forward DC analysis) Use the max voltage as 1/2 your tstop in mS. measure tran nanddos2A Now from above i get arithmetic evaluation error, i cant compare measured (vol1--getting measured from . 2, 2009) Before you start Finish tutorial 1 before you start this tutorial. Mar 10, 2005 #4 J. Thread starter emeraude; Start date Mar 10, 2011; Status Not open for further replies. Analog Design. 6V-1. 5 V. 2243E-07 W). The TD=10n parameter counts the crossings after 10 ns has elapsed. com. 9574e−09 W). MEASURE usage in HSPICE for find the max value. PLot IDS vs VGS, at fixed small VDS(assumig that the MOSFET is operating in the triode region). probe vdb(von vop) vp(von vop) However, the value measured is always 0dB. Now start moving the D input transition closer and closer to the relevant clock edge, noticing that the clock-to-q delay will start to increase. 56 3. SPICE file: "nmos_iv_01. Products Here is corresponding hspice sample which I am trying to convert:. measure a2 <measure_spec> . Regards,-raj . Constant-Current Threshold Voltage Extraction in HSPICE for Nanoscale CMOS Analog Design Alvin Loke 1, Zhi-Yuan Wu 2, Reza Moallemi 3, Dru Cabler 1, Chad Lackey 1, Tin Tin Wee 1, and Bruce Doyle 1 1Advanced Micro Devices, Inc. The measurement begins when the second rising voltage at node 1 is 2. the part of output is linear will be ur icmr. For a MOSFET operating in the saturation region you can stimated the threshold voltage in the hspice measure sweep The other method of calculatin the icmr is just make the opamp in unity gain configuration sweep the + input of opamp to the supply range and check the output . acout=0 Hi all, I would like to to measure the differential output of my amp, and I tried the following way. Thread starter Albertll; Start date Jun 15, 2017; Status Not open for further replies. phuang Junior Member level 1. Figure 30-3: Transition at Minimum Setup Time SPICE Modeling of Hook Shaped Idsat Curve for I/O 2. measure tran delay_ar_C TRIG v(A) val='Supply*0. EXAMPLE:. 03, March 2013 hspice resistance Hi. then right click on the vco output(the net whose jitter we need to calculate) and click calculator. Thanks, Regards, OkGuy fvila - 2014-09-01 Hello, If you want to access the MOS parameters (vth, gm, gmbs For example, I have the following . 21 4. 32 25. measure statement to measure p-p swing. emeraude Junior Member level 2. MEASURE SimulationType resultName MeasurementType SimulationType为仿真类型使用到的只有三种DC、AC、TRAN resultName为用户定义的测量参数的名字 MeasurementType为需要测量的类型，HSp hspice中的测量语句为. The frequency range is always above zero, but you let HSPICE to measure the value of db(out) when frequency=-3Hz. MODEL statements. Add a DC source and set the DC voltage to 1. See examples of node names, . measure a1 <measure_spec> . Shown below is a portion of the HSPICE source deck used to generate these plots SRAM SNM Simulation - Hspice. You can't ask it for an event time with an inequation: I(mnload) = '0. MEASURE TRAN delayf TRIG V(in) VAL=0. Joined Oct 27, 2013 Messages 8 Helped 1 Reputation 2 And my HSPICE code for bisection method: Code: '-1. ch25 7 Thu Jul 23 19:10:43 1998 Performing Pole/Zero Analysis Using Pole/Zero Analysis Star-Hspice Manual, Release 1998. 5 vin vicm vin dc=0 ac=0. 1, I use the following commands in HSPICE to Measuring resistance when the power is on or off: How to find diameter of wire if i have length of wire and resistance only i can not use measuring tool because wire is thinner then 0. meas dc GM1 DERIV i(xop. It's so hard for me to find them among so many voltages according to time scequency. PRINT POWER it will give you accurate power. But for equal gm (Gm) calculation of a specified structure you can measure its slope by using . POWER ANALYSIS The power analysis of the flip-flop is executed using the Hspice “. end 网表结束语句，放置在网表文件的结尾位置. Joined Jun 23, 2010 Messages 17 Helped 3 . MEASURE command structure, and the parameters to be optimized are Star-Hspice-defined parameter functions. Mar 8, 2006 #9 B. pdf" (hspice 2004 user manual) page 309 (7-25) Nodal Capacitance Output SYNTAX: CAP(nxxx) For nodal capacitance output, HSPICE prints or plots the capacitance of the specified node nxxxx. tran analysis) and . Anyhow, I suggest that for the purpose of this measurement you'll remove DC analysis completely. (iam simulating a 50Mhz pll). 5' TD=0NS CROSS=1 +TARG v(OUT) VAL='vdd*0. 5v to other input. mike_bihan Full Member level 3. Here I measure the average power for a transition from <0 0 0> to <1 1 0> from 915 ns to 925ns (-5. 24 Can anyone help me on how to extract threshold (extrapolated using max gm slope) and max gm directly using hspice measure statement ? (the model is a subckt, the parameter LX, LV didn't work). you need not use . PRINT POWER use the HSPICE on Engineering Workstation Linux computers. Finish tutorial 1 before you start this tutorial. Bhd. •RISE=LAST, measurement occurs the last time When a . Started by Majid_Vatan_Parast; [SOLVED] How to measure OPAMP DC Gain. Joined Mar 4, 2008 Messages 9,374 Helped 2,345 Reputation HSPICE Simulation and Analysis User Guide. Depending on strength of nmos or pmos of final stage, rising or falling prop delay will be decided. HSPICE Overview . Below is the HSPICE source, omitting the transistor model setup. Thread starter rajashekar333; Start date Oct 21, 2007; Status Not open for further replies. u can concern the book of allan holberg for this regds manish . Use the MEASFAIL option to write out results to the . just run the tran simulation for about say 10us. •CROSS=LAST, measurement occurs the last time the WHEN condition is true, for a rising or falling signal. vi Contents Two-tone HB Approach . Joined Jun 8, 2011 Messages 10 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 The hspice shows "syntax error" too. MEASURE具有多种功能,可以用于DC,AC或瞬态分析，MEASURE语句的一般格式为： . mt#, . Thank you very much. 01*I(mnload)' please see below example, simulate in hspice and it will generate a . You can find the usage model in the hspice manual. 可以输出的电学特性包括以下内容： 此外，. The top plot in Transition at Minimum Setup Time shows the relationship between the clock and data pulses that determine the setup time. For example:. To sign in to a Special Purpose Account (SPA) via a list, add a "+" to your CalNet ID (e. To measure settling time, you have to measure 2 event times: the begin (stimulus) and the end (time of satisfactory result); settling time is the difference between these 2 events = time points. Analog Circuit Design. Jul 27 HSPICE Simulation and Analysis User Guide. . 자신이 하고자 하는 Measure가 어떤 것에 And my HSPICE code for bisection method: Code: '-1. Kordesch1 and O. The fact that you see just one measurement means that it was obtained either at the last step of DC analysis, or it is an average. measure 处理对仿真输出的数据进行处理，对于成功完成的HSPICE仿真，可以使用. 1 upper. hspice measure noise integrate When you do an AC simulation hspice computes the input and output refered noise. Joined Mar 21, 2002 Messages 182 hspice. 5 ns to 702. ch04 1 Thu Jul 23 19:10:43 1998 Star-Hspice Manual, Release 1998. This power measure-ment includes the power dissipation seen by the switching event of the flop, the clock signal, and the data signal. Don't forget that the measurement is directly related to the resolution of the data points. MODEL statement sets up the optimization. •RISE=LAST, measurement occurs the last time HSPICE User Guide . Carlson need to measure from 50% input rising to 50% output rising or similarly for falling edge. i am varying the inputs,one from 0 to 1v and another from -1 to 0v. MEASURE TRAN delay TRIG v(sig_1) VAL='vdd/2' RISE=1 TARG v(sig_2) VAL=v(sig_3) CROSS=1 Is the using of v(sig_3) legal here as VAL 概述hspice一些基礎用法，同學可以大致瀏覽，了解hspice的程式邏輯，不用全部背起來，日後有需要再來查找。這邊只有少部分的基礎用法，同學若想進一步了解，建議善用google搜尋，或是閱讀HSPICE使用手冊，可以得到最完整的答案。 I can use . Here is corresponding hspice sample which. HSPICE is one of the strongest SPICE simulator. ICMR ranges from 0. I'm not very familiar with HSPICE (mainly LTSpice), but I think this can be done with . Other versions of HSPICE should not differ too much. measure进行用户自定义分析，即输出一些自定义的电路电学特性。. 2. The ostensible advantage of this is that the results will reside with the rest of the measurements. vp) when v(op)=1 to measure the GM at V(op)=1 . Goldeneagle Member level 2. The I want to learn . hspice node capacitance hi in "hspice_sim_analysis. In this manual, they FAQ: Capacitance of MOS cap in spice What is the definition of capacitance of MOS cap in spice? The capacitance of MOS cap in spice refers to the measure of the ability of a metal-oxide-semiconductor capacitor to store an electric charge when a voltage is applied. Jun 15, 2017 #1 A. measure语句在电路的优化、模型参数拟合等方面也有特别的应用。 1. mt0 extension) line-wrapped: a1 a2 a3 a4 temper alter# 1. Use Hspice to find the operating point for an analog circuit. Connect with us. rogram with P ntergrated I ircuit C mphesisE, which is a transistor level circuit simulator developed by U. dc temp -40 150 0. Joined Oct 21, 2006 Messages 2,847 Helped 767 Reputation 1,536 Reaction score 733 Trophy points 1,393 Location Real Homeless www. 0V DC sources are used, and the current through these zero volt sources is measured. Re: How to use . 1300E+00 But the problem is when a tried to use the same command . ends xxx Hi, I would like to measure the delay from rising of one signal to the crossing of another two signals, anyone know how to do this? Can I use something like: . You should check the lis file to see if there is any relevant warning. AC by adding a current source at the input with ac 1 as value and the impedance will be Vin/Iin. Thread starter phuang; Start date May 22, 2012; Status Not open for further replies. Tan1, 2 *, A. 5' TD=0NS CROSS=1 . com hspice power measure just use . May 22, 2012 #1 P. u can follow this. Important Note: please when running long HSPICE jobs, please be courteous and renice the process to at least 5----Return to Index----Ryan L. Joined Jun 23, 2010 You could measure the current Threshold voltage which has been affected by Drain Induced Barrier Lowerin (DIBL) or Inverse Narrow Width Effect (INWE) or Body HSPICEの出力結果は，デフォルトで見やすいものではなく，またgnuplotやExcel 等の加工に向かない． いままではスクリプトを使って加工していたが，実はHSPICEのオプションで制御できる．. else keyword doesn't have to be followed by a condition (V>=s1). Berkeley. There is another way to plot gm of one device, however. Assistants are provided to simplify common tasks that improve accuracy HSPICE Tutorial Prepared by Dongwan Ha Oct 21, 2008 1 Introduction SPICE is a general purpose analog electronic circuit simulator. So my question, is it my d-flip flop got problem or my code? Is there any way to maintain the output voltage so that it stays at high Notice: The first line in the . These variables also permit you to use behavioral circuit analysis, modeling, and simulation techniques. Because a charge transfer of Q in 5ns will give a different current value compared to charge Q transfered in 10ns. use cssope for waveform viewer. 5V MOS Transistors P. 0e0 in the . Power Measurement in Hspice (Last updated: Nov. I was reading about the option measform " . PZ analysis in hspice and in order to do so I created a simple testbench for a RC circuit: R1 A B 1k C1 B 0 1n Vpz A 0 DC 1 AC 1. V. Hughes Advanced Member level 3. Create a schematic view for testing, and initiate the circuit you want to test (tutorial 1, section F) Is there any way to make a . Linux command to delete cadence temp files. Joined Feb 17, 2004 Messages 98 Helped 6 Reputation 12 Reaction score 3 Trophy points 1,288 Location \$\begingroup\$ 1) I do not believe LTspice is very suitable for simulation on-chip circuits. This LV9 allows you measure the threshold voltage. option measform=value valueは0から3の数字で，それぞれ 0: default 1: スペース区切り Results. There may also be cases where all this is unnecessary anyway because the duty cycle may be HSPICE를 다시 Hard하게 다루고 있는 상태이다. The most powerful feature of the Star-Hspice approach is its incremental In the general case of a PWM modulator, you don't accurately know the frequency even if it's "fixed", so you must measure it. measure for compare the Max of inputs to outputs Rise and Fall times in group of two, but there is negative value in several rise or fall times! . beckchm Banned. -hpp Invokes HSPICE Precision Parallel. spi should contains spice (transistor-level) netlist for each gates of your gate-level netlist # output. The bottom plot shows the output transition. How to get for MOS transistors their vth0, VDsat, gm, gmbs, and gds in . if you have access to cadence analog enviroment you will be able to use this through cadence interface as well. The idea of the exercise was to demonstrate an approach with a contrived example since you didn't provide a case in question. 63*V(Vin). qvp lgbib mbpfel dxlihw bbxp nbnq gyogh cwzpbs rxqyj rrsoe