Hspice measure mpig . measure a2 <measure_spec> . To measure the slope of the DC characteristic, use the Measurement Tool from the Tools menu. 06, June 2015 [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 . 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. When you apply a signal at the input it takes for a while for the output to respond, But at the same time if you keep increasing the 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. Make Schematic and Symbol for your circuit. measure，可简写为. \$\begingroup\$ 1) I do not believe LTspice is very suitable for simulation on-chip circuits. Thread starter rajashekar333; Start date Oct 21, 2007; Status Not open for further replies. Find-when. lokeshgarg Newbie level 5. the part of output is linear will be ur icmr. Reactions: subujohn. MEASURE statements. It will contains measurement results for all gates in your critical path, cell delay and transition time. Learn how to write and run Hspice files for spice simulation on Sun/Unix platforms. 2243E-07 W). 268. 8: SPICE Simulation CMOS VLSI DesignCMOS VLSI Design 4th Ed. Joined Jun 8, 2011 When a . 5' TD=0NS CROSS=1 +TARG v(OUT) VAL='vdd*0. I found 2-methods from the web, but the result is different, I would like to know whether any of it is correct? *method-1 xm1 d g s b nfet w=1e-6 l=3e-9 vd d 0 dc vdd vs s 0 vb b 0 vg g 0 dc hspice measure vil There is no such definition, You might be confusing propagation delay and VIH. meas dc GM1 DERIV i(xop. HSPICE supports S-parameter models with an arbitrary number of differential and single-ended ports. LAST HSPICE measures when the last CROSS, FALL, or RISE event occurs. lis或由用户自己定义 Hi I would like to simulate all y-parameters(y11,y12,y21,y22) for MOS by using HSPICE (v2016. 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. In this tutorial, To measure the lower and upper 3-dB frequency, as well as the 3-dB bandwidth, use the Measurement Tool from the Tools menu. Don't forget that the measurement is directly related to the resolution of the data points. 09, September 2014 . HSPICE doesn't know db(out) Solution:. MEAS and . print P(vdd). 5 ns to 702. 2 Thanks in advance. Meas”) ``On-screen measure drawing ``HSPICE measure tool \$\begingroup\$ @aconcernedcitizen Thank you for your comment. but i have doubt if it is correct or not. Add a DC source and set the DC voltage to 1. 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 ac CAP(5) CAP(6) Nov 9, 2005 #6 F. 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. Here I measure the average power for a transition from <0 0 0> to <1 1 0> from 915 ns to 925ns (-5. The hspice gave me the good answer : deriv_sqrt_id_max= 5. measure pwr AVG P(vdd) FROM=0ns TO=10ns Power in single gate – Connect to separate V DD supply – Be careful about input power. u can concern the book of allan holberg for this regds manish . I didn't use your models, or your ``HSPICE measure tool . Measuring resistance when the power is on or off: Test & Measurement: 15: Nov 16, 2024: M: 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. measure command. all assistance is appreciated greatly. MEASURE Statement Order The Hspice Deck Using Built-in Optimization. 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 HSPICE User Guide . ankitgarg0312 Full Member level 2. Joined Sep 17, 2009 Messages 23 Helped 3 Reputation 6 Reaction score 2 Trophy points Notice: The first line in the . But for equal gm (Gm) calculation of a specified structure you can measure its slope by using . For a MOSFET operating in the saturation region you can stimated the threshold voltage in the How to get for MOS transistors their vth0, VDsat, gm, gmbs, and gds in . 2, 2009) Before you start Finish tutorial 1 before you start this tutorial. Let us consider DC. Given a parameter value for the number of fans and inverters, the code is designed to also automate creating the spice . u will have the option to give rising and falling seperately. Joined Jun 2, 2013 Messages 39 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 hspice中的测量语句为. Actually, from -3dB, I meant -3dB of V(i) by assuming that . After doing more digging I was able to label the nets within my extracted hspice please help me to measure Gm in one circuit with Hspice. The ostensible advantage of this is that the results will reside with the rest of the measurements. Below is the HSPICE source, omitting the transistor model setup. 语句顺序 After the added . Measure는 특정한 값 1개를 뽑는 것이고, Signal 계산과 Variable 계산으로 나뉜다. How does one measure impedance/resistance using SPICE? I have access to regular SPICE(MacSpice) and HSpice. Behavioral Voltage Source See “Voltage and Current Controlled Elements” in the HSPICE Simulation and Analysis User Guide. 06-SP1). As shown below in Figure 1, a typical PLL consists of functional blocks that include a reference See this HSPICE® User Guide: RF Analysis manual, chap. I was reading about the option measform " . 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. 09, this option is obsolete. HSPICE, a popular SPICE simulator shipped by Meta Software Inc. Starting in version 2003. 5 V and ends when the second falling voltage at node 2 is 2. The output resistance is given by ohms law V/I. 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 : . 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。 I can use . net. i am using HSPICE and cosmos-scope. 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 : . 5 ns (-1. you can read that file in waveform viewer. lis. Joined Aug 2, 2005 Messages 351 Helped 15 Reputation 30 Reaction score 7 Trophy points 1,298 Location Shanghai Visit site site:edaboard. 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。 please see below example, simulate in hspice and it will generate a . 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 Fundamental measurement modes in HSPICE are: Rise, fall, and delay. LIB and . measure tran integ (v(1)-v(2))*idd from=20n to=50n but I cannot get it to work. measure hspice Check out Avantis hspice guide. Joined Oct 27, 2013 Messages 8 Helped 1 Reputation 2 HSPICE를 다시 Hard하게 다루고 있는 상태이다. 21 4. Joined Jul 17, 2014 Messages 27 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Location Jaipur, Rajasthan, India Visit site \$\begingroup\$ @aconcernedcitizen Thank you for your comment. com Activity points 17,490 rmanalo said: measure the signal-to-noise ratio (SNR), total harmonic distortion (THD), signal-to-noise and distortion ratio (SNDR), and effective number of bits (ENB). To measure Power Dissipation Characteristics: Add a measure statement to your integrated into the core of Star-Hspice, resulting in optimum efficiency. MODEL statement sets up the optimization. beckchm Banned. 0e0 in the . MEASURE result, and writes "FAILED" in the output listing file. i have seen one command like . I am trying to calculate noise with nldm method using hspice. Joined Sep 21, 2012 Messages 8 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Location India how to measure gm try this in Hspice. 1. you need not use . There is another way to plot gm of one device, however. These files arn't very useful either as the data is hard to read and already exits in a nicely formated way in the . Jun 15, 2013 #2 amitjagtap Full Member level 5. -o output_file Name of the output file. mt#, . e. CROSS = LAST, measurement occurs the last time the WHEN condition is true, for a rising or falling signal. measure statement from top) values (i. Thanks & Regards SRINI . Thanks! Kelvin . 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. M. -hpp Invokes HSPICE Precision Parallel. Started by Majid_Vatan_Parast; [SOLVED] How to measure OPAMP DC Gain. measure measurements - one for each step of DC analysis. alter. Points: 2 Helpful Answer Positive Rating Oct 3, 2012; Oct 3, 2012 #4 S. The final two statements are 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. 2) Standard models aren't very suitable for simulating mosfets in 45 nm technology, many effects are not modelled. PZ V(B) Vpz I expect the pole to be at 1MHz but spice gives me extremely weird results: poles (rad/sec) poles ( Conventions Star-Hspice User Guide, Release 2001. MEASURE statement fails to execute, Star-Hspice writes 0. use cssope for waveform viewer. 09, to automatically sort large numbers of . I sweep the DC voltage of the first DC voltage source. You can use . this example gives u direct VI characterstics of subckt(MOS). you must add the following statement in the head of hspice netlist then you can see all node voltage. Joined Feb 8, 2008 Messages 140 Helped 20 Reputation 40 Reaction score 7 Hi, I want to measure Max delay of a full adder,So I use . 5 and I want to measure temp=20 Va=? and temp=150 Va=? how to write out . measure dc vth_n avg lv9(mn0) . Use the MEASFAIL option to write out results to the . HSPICE Transient Analysis: Below is a spice deck for characterizing a CMOS inverter. alter as hspice allows two voltage sweeps ( hspice node capacitance hi in "hspice_sim_analysis. Important Note: please when running long HSPICE jobs, please be courteous and renice the process to at least 5----Return to Index----Ryan L. if this mosfet is in subckt form. 09, September 2014 In a mosfet there are mosfet templates and for threshold voltage it is LV9(mosfet). hspice probe vth Hi, You can obtain the Vth directly from de I-V curves. Isn't there some equivalent command that you can put in your spectre deck ? thanks. Status . I have a simple circuit of a voltage source in series with a resistor and capacitor and I need to find the time that the voltage at the capacitor reaches 63% of the VTH changes in DC from Hspice. bastos . measure tran nanddos2A Is there any way to make a . dc temp -40 150 0. For example:. probe vdb(von vop) vp(von vop) However, the value measured is always 0dB. ” HSPICE now accepts input line lengths of 1024 characters. . Is there any other way?. 0' rise=1 + pushout_per=0. This LV9 allows you measure the threshold voltage. For example, I have the following . 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. 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。. 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. 1） Hspice输入文件： 输出配置文件 meta. eeAmateur Newbie level 3. Thread starter phuang; Start date Apr 23, 2012; Status Not open for further replies. B. mt0, mt1, , mtX) and optionally, convert to CSV. MEASURE TRAN delayf TRIG V(in) VAL=0. 09. Make Schematic and Symbol for your circuit Please refer to tutorial 1 (section C/D) 2. because both inputs should vary simultaneously but HSPICE generates different How to Sign In as a SPA. SPICE is a general purpose analog electronic circuit simulator. 0' rise=1 + targ v(Q) val='v(vdd)/2. option measform=3 option, which makes HSPICE save the ouptut in CSV format in the first place! Still, perhaps someone might find this In versions of HSPICE before 2003. This was implemented when I didn't know about . tran analysis) and . Mar 24, 2020 #2 D. 5v to other input. Other versions of HSPICE should not differ too much. 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 Measurement and Optimization features handle these two steps. mt0 extension) line-wrapped: a1 a2 a3 a4 temper alter# 1. engronger Member level 2. PRINT, . measure deriv . sp" 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. i have given +0. ic 输入网表文件 <design>. Equation evaluation. youtube. measure script ? 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 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: . 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. subckt xxx 1 2 R1 1 2 1 . what is the purpose of measuring current. Could HSPICE Tutorial Prepared by Dongwan Ha Oct 21, 2008 1 Introduction SPICE is a general purpose analog electronic circuit simulator. #2: Power Electronics: 0: Jun 5, 2021: A 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. MEASURE commands. 24 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). 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! . mt0 file i. Average, RMS, min, max, and peak-to-peak. Jun 25, 2011 #1 L. Please look at the two different circuits in the attached picture. The most powerful feature of the Star-Hspice approach is its incremental in hspice is it possible to measure jitter of pll or not? qpss noise to calculate the long term jitter. I. The objective is to measure . If this is the case, you should've obtained a set of . sp Then look in the *. for this i did transient analysis now i have a data in . mike_bihan Full Member level 3. in hspice is it possible to measure jitter of pll or not? qpss noise to calculate the long term jitter. for various control voltages i have a different frequencis. MEASURE -- Evaluate User-Defined Electrical Quantities . Integral evaluation. Thanks, Regards, OkGuy fvila - 2014-09-01 Hello, If you want to access the MOS parameters (vth, gm, gmbs Power Measurement HSPICE can measure power – Instantaneous P(t) – Or average P over some interval. Analog circuit simulation. ac dec 2001 0. Anyone can tell me the right syntax? Thank you very much! teraze . 7847E-03 at= 1. For measures u can see for diff of timestamp when |vin-vout|=0 for first and 2nd time. HSPICE® User Guide: Signal Integrity Modeling and Analysis Version J-2014. need to measure from 50% input rising to 50% output rising or similarly for falling edge. 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 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。 Yes, but I think you're getting close: 1. You can find the usage model in the hspice manual. Rather than using DC analysis, we can also use Transient Analysis with a . HSPICE Overview . A PowerPoint presentation that covers the basics of HSPICE, a circuit simulator for mixed signal integrated circuits. 2. If you run other examples with ac simulation or spectrum analysis, time may How measure the sub-threshold current of a inverter in HSPICE, I used the comand lx4 and I did a DC Sweep of the input voltage, but I think the values are low to calculate power consumption. The next two statements measure the 10%->90% rise and fall times for the output signal. u can follow this. Depending on strength of nmos or pmos of final stage, rising or falling prop delay will be decided. 03, March 2013 plot gm in hspice Hi. Hughes Advanced Member level 3. 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. param for . sp file must be a comment line or be left blank. It is a powerful program that <measure> $ measurement statement ( ’. INCLUDE, . Provide more details as I think you are mixing two things : trying a measure a static parameter which is actually dynamic. •FALL=LAST, measurement occurs the last time the WHEN condition is true, for a falling signal. 자신이 하고자 하는 Measure가 어떤 것에 HSPICE® User Guide: Advanced Analog Simulation and Analysis Version J-2014. Joined Mar 9, 2004 Messages 4 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Visit site Activity points 78 transconductance gm. dick_freebird Advanced Member level 7. param var1=v1min var2=v2min . sw0 file . d2a 2） Hspice输出文件： 输出列表 . MEASURE command structure, and the parameters to be optimized are Star-Hspice-defined parameter functions. measure statement and DERIV keyword (or something like that) to calculate the derivative (or slope) of your parameter 'Id/Vgs'. Measurement is performed when the last CROSS, FALL, or RISE event occurs. By default, it's 300 points, which can give inaccurate readings. vp) when v(op)=1 to measure the GM at V(op)=1 . 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： . 6 RISE=1 TARG V(out) VAL=0. if is checked before simulation starts). subujohn. cfg 初始化文件 hspice. Can anyone suggest me to continue. There is another, more elegant way to find CLOAD using the built-in optimizer of Hspice, one of the commercial versions of Spice. else keyword doesn't have to be followed by a condition (V>=s1). Apr 8, 2006 #3 H. S. I use this approach to find output resistance of complex blocks. i am taking noise data in liberty files as reference for my calculation results using simulator hspice. Carlson 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. I set up the following circuit, with a DC voltage source, connected with a voltage source with zero DC and AC output, followed by the circuit under test. HSPICE measures when the last CROSS, FALL, or RISE event occurs. Measurements for tran analysis start after a delay time td. warlocklw Newbie level 5. Apr 20, 2004 #4 E. after opening the Now from above i get arithmetic evaluation error, i cant compare measured (vol1--getting measured from . The frequency range is always above zero, but you let HSPICE to measure the value of db(out) when frequency=-3Hz. As this current depends on the input, I decided to measure something average, namely, the leakage current of a ring with two CMOS inverters so that both PMOS and NMOS devices have an opportunity to be in both on and off states. 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" The hspice shows "syntax error" too. emeraude Junior Member level 2. jordan76 Full Member level 3. So I changed V(o) -> mag(Vo) and -3dB -> 10^(-3/20)= 0. Joined Jun 15, 2017 Messages 1 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Visit site Activity points 13 HSPICE® User Guide: Advanced Analog Simulation and Analysis Version K-2015. plot’ ) <alter> $ alternative conditions you wish to run 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. See examples of node names, . 00 1 I think the . PRINT POWER it will give you accurate power. MEASURE generation. 2GlobalFoundries, Inc. measure can do it, see hspice tutorial for detail . Dec 6, 2005 #5 shaq HSPICE® Reference Manual: Commands and Control Options Version J-2014. Thread starter warlocklw; Start date Dec 6, 2013; Status Not open for further replies. To sign in to a Special Purpose Account (SPA) via a list, add a "+" to your CalNet ID (e. 可以输出的电学特性包括以下内容： 此外，. Measurement Use the Star-Hspice MAX measurement function to detect success or failure of an output transition. Regards,-raj . meas ac freq3db when VDB(OUT) = - 3 HSPICE® Reference Manual: Commands and Control Options Version H-2013. imulation . measure TRAN td_r TRIG v(out2) val='vdd/2' fall=2 use the HSPICE on Engineering Workstation Linux computers. oly Junior Member level 3. 7 . Joined Mar 2, 2011 Messages 22 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Location Philippines HSPICE® Reference Manual: Commands and Control Options Version K-2015. 1 10G . measure lines in my HSPICE netlist:. Include the . com hspice power measure just use . Ideal Transformer See “Ideal Transformer” in the HSPICE Simulation and Analysis User Guide. Mar 10, 2005 #4 J. thanks a lot v Contents Channel Length Modulation . 1 upper. if you have access to cadence analog enviroment you will be able to use this through cadence interface as well. Hi, How can I measure setup time of a flip flop if I have its model in hspice? I need setup time of a flip flop in 45n technology. 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). Thread starter lokeshgarg; Start date Jun 25, 2011; Status Not open for further replies. 145 HBAC Approach Phase Margin Measurement in HSPICE. uncle_urfi Full Member level 2. Jun 15, 2017 #1 A. measure to find the sqrt(id(mn1)) in that point. 0ns) . I realize the design is digital, but this seems to be a more appropriate forum for capacitance questions. Use Hspice to plot the closed-loop transient response of an amplifier, and be able i want to calculate/measure differential output and gain of a simple differential amplifier. . You can't ask it for an event time with an inequation: I(mnload) = '0. HSPICE’s If "FROM value TO value" is not described, all times are in the measurement range. Measurements also include: ``Snap-to-wave feature ``Measure update on reload ``Glitch detection ``Measurement export (as “. Ideal Op-Amp See “Ideal Op-Amp” in the HSPICE Simulation and Analysis User Guide. write a pwl source in hspice netlist such as veye aaa 0 pwl (0 0 100n 100n r) the 100n is the eye width, Coming back to my original question, you can put . OPTION MEASFORM=1" But when I obtain the report of the simulation, appears this warning . Learn how to use HSPICE commands, options, models, and analysis In Hspice, V(node) represents the voltage at node, node. measure’, ’. Linux command to delete cadence temp files. Mar 8, 2006 #9 B. just run the tran simulation for about say 10us. yibinhsieh Full Member level 4. 1, I use the following commands in HSPICE to Because a charge transfer of Q in 5ns will give a different current value compared to charge Q transfered in 10ns. It's so hard for me to find them among so many voltages according to time scequency. Mar 26, 2004 #5 M. , the time axis of a . then in cadence go to results browser from the analog environment. Joined Mar 4, 2008 Messages 9,366 Helped 2,345 Reputation how to measure voltage ina time period using hspice. I need to analyze a huge ammount of node voltages at some exact time points. measure tran nanddos1A +TRIG v(A) VAL='vdd*0. Joined Feb 19, 2006 hspice . Make a perl/python/whatever script that generates a . Started by T-14; Sep 26, 2024; Replies: 2; Analog Integrated Circuit (IC) Design, Layout and more. In this document, we will introduce HSPICE, a Finish tutorial 1 before you start this tutorial. 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 Just wondering if someone could be able to help me to use FindWhen measure for DC analysis with spectre syntax. after opening the A. Create a schematic view for testing, and initiate the circuit you want to test (tutorial 1, section F) Hi, i´m trying to obtain a csv output file in HSPICE. TRIG: Equation for increase/TARG: Equation for decrease "TRIG: Equation for increase/TARG: Equation for decrease" is a rather complex integrated into the core of Star-Hspice, resulting in optimum efficiency. Oct 21, 2007 #2 E. measure a1 <measure_spec> . 4 v courier italic Arguments appear in this font when the value of an argument is a string. Try to help me. Similar threads. The threshold voltage is estimated by linearly extrapolating back to the x-axis. lis file. Joined Oct 21, 2006 Messages 2,847 Helped 767 Reputation 1,536 Reaction score 733 Trophy points 1,393 Location Real Homeless www. EXAMPLE:. g. See the comments which explain how capacitance "c_comp" is measured. csv file from hspice? Jul 4, 2018 #2 pancho_hideboo Advanced Member level 5. 2. SPICE file: "nmos_iv_01. Thread starter oly; Start date Mar 25, 2015; Status Not open for further replies. You can drag the marker and read off the corresponding slope values of Here I measure static power for the pattern <1 1 0> as the average power from 692. measure statement is evaluated while simulation is going on whereas . The most powerful feature of the Star-Hspice approach is its incremental Welcome to Spiceguy. hello i am making a circuit of VCO. print the signal in hspice and plot its eye with matlab, before this you must write a matlab script first. 56 3. 1mm: Test & Measurement: 16: Dec 22, 2023: D: Measuring DC motor resistance . mt# file as the . For dynamic energy I am measuring the average power at each state transition. measure tran delay_ar_C TRIG v(A) val='Supply*0. The TD=10n parameter counts the crossings after 10 ns has elapsed. measure TRAN td_f TRIG v(out2) val='vdd/2' rise=2 + TARG v(out3) val='vdd/2' fall=2 . So I changed V(o) -> HSPICE is one of the strongest SPICE simulator. now i want to find the slope of F vs V curve with the help of hspice command. The How to calculate leakage and dynamic power for a circuit in Hspice. 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. ini 直流工作点初始化文件 <design>. 3. It has a eye function 2. The idea of the exercise was to demonstrate an approach with a contrived example since you didn't provide a case in question. different widths) for DC analysis using HSpice. measure statements in your HSPICE deck. I tried . HSPICE Tutorial – AC Simulation We will construct and analyze a NMOS common-source amplifier as the example for AC analysis. 707945. In the case of a low-to-high output transition, a MAX measurement produces zero on failure, or approximately the supply voltage V dd on success. This would be a huge work when I use monte carlo simulation, and bandwidth calcul hspice Because: 1. MEASURE idsat find i(vd3) when V(Vg1)=0. 9574e−09 W). For Fig. Dec 6, 2013 #1 W. The setup can be more labour intensive, however. •RISE=LAST, measurement occurs the last time 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 2) Alternate Method to Measure Capacitance using Transient Analysis This example shows how to measure input capacitance on an inverter input using transient analysis. Products Here is corresponding hspice sample which I am trying to convert:. meas tving find V(vin) at <time_value> Similarly fot the delayed voltage. In this document, we will introduce . 5 vin vicm vin dc=0 ac=0. , "+mycalnetid"), then enter your passphrase. MEASURE vtsat_sp find VTH(MN2) when v(vg1)=0. Joined Jun 10, 2003 Messages 715 Helped 113 Reputation 226 Reaction score 27 Trophy points vi Contents Two-tone HB Approach . 06, June 2015 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. 3Synopsys, Inc. Status Not open for further replies. 2V. meas dc :cry: Dear all, I encounter a problem in sim with hspice 2004. you can name your measurement in your netlist and write Check hspice documentation, you are looking for the the . 1300E+00 But the problem is when a tried to use the same command . Today is: Wednesday December 25, 2024 Hysteresis Simulation. 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. C. measure according to general form 1 measures the difference in dc voltage, frequency or time between two points selected from one or two output vectors. measure for each edge. HSPICE appends the extension . sp 库输入文件 <library_name> 模拟转移数据文件 <design>. ends xxx totaly i need to obtain total load capacitance of inverter and i don't know what is this capacitance is that hspice measures. PLot IDS vs VGS, at fixed small VDS(assumig that the MOSFET is operating in the triode region). I am using a SPICE simulator for this purpose. 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. please help me again,thanks . MEASURE works like how we perform AC analysis and taking approx value. By the awy, I am using AvanWaves to plot waveforms. And it worked successfully and I got frequency value that is quite close to approx value from plot As mentioned by @analogsystemsrf, the capacitance varies, so a . measure command ? For instance, HSPICE and ELDO use LX7(M0) for the transconductance gm of a MOS transistor. measure statements into your hspice deck. 09, September 2014 I would like to measure the leakage current of a CMOS inverter. Feb 21, 2010 #2 jardila Junior Member level 2. I can look at the time values on the waveform viewer and determine an estimated time, however given that LT spice is equipped with a measurement feature I'd like to be precise. Apr 23, 2012 #1 P. Berkeley. then right click on the vco output(the net whose jitter we need to calculate) and click calculator. measure tran clk_to_q + trig v(CK) val='v(vdd)/2. Last edited: Mar 2, 2014. MEASURE statements that refer to a range over the abscissa. LVS for HSPICE netlist. measure a4 <measure_spec> It annoys me that HSPICE outputs the table (with the . The measurements named like delay_inv1/a_inv1/z, which means, that it is delay from pin inv1/a to pin inv1/z. 자꾸만 까먹어서 Measure 구문에서 수식 등이 들어간 Measure 문법을 정리해 놓는다. 01*I(mnload)' 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. 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: I want to do some integration in Hspice . A. probe I(*) but it didn't work! You just don't see mosfet terminal current no matter how. 0V DC sources are used, and the current through these zero volt sources is measured. 5v to one input and -0. 5' td=5ns cross=1 LAST HSPICE measures when the last CROSS, FALL, or RISE event occurs. measure such as:. The current examples all are using transient simulation. 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. SPICE stands for . 32 25. 5 . Is there any command to compute d/dt in hspice. Joined Apr 25, 2005 Messages 194 Helped 19 Reputation 38 Reaction score 5 If you need to measure the Y-axis at a specific time point then, for your case, you would use this:. AC by adding a current source at the input with ac 1 as value and the impedance will be Vin/Iin. Mar 25, 2015 #1 O. Joined Mar 25, 2004 Messages 170 Helped 4 Reputation 8 HSPICE Simulation and Analysis User Guide. PRINT statements, add your measurement statements to automatically calculate delay or other useful metrics. Here is corresponding hspice sample which. how to use measure command in hspice for DC analysis. tran in mS (milli-seconds). holddreams Full Member level 6. i am varying the inputs,one from 0 to 1v and another from -1 to 0v. Hope this was clear. Albertll Newbie level 1. Joined Jan 10, 2007 . 0*t_setup+trf_data+1fs', 1. TRAN analysis will be a bit more involved, but since this is SPICE world you can measure it easily in . VerilogA block HSPICE measure absolute value. Joined Mar 15, 2004 Messages 146 Helped 10 Reputation 20 Reaction score 6 Trophy points 1,298 Visit site Activity points 2,004 **broken link light on this. mt0 file, that Hspice have generated. Mar 4, 2014 #8 M. 5 V. The DC current divider circuit at the bottom of this webpage seems to be one method. tran sweep many temperature and measure it but If only use dc sweep temp like this . Hspice . ma# files. Now the measure performance is order-independent, and HSPICE ignores this option. Since Iin is unity, you can read the value of the impedance in Volts as Vin:. flushrat Full Member level 3. hspice resistance Hi. The impedance can be AC or DC. Thread starter Albertll; Start date Jun 15, 2017; Status Not open for further replies. Anyhow, I suggest that for the purpose of this measurement you'll remove DC analysis completely. For a large circuit with many inputs, you need to make sure you measure And my HSPICE code for bisection method: Code: '-1. It is famous for its accuracy and it's a de-facto standard upon which most semiconductor companies depend. Jul 27 Measure Inverter Switching Power Dissipation - HSPICE. rogram with P ntergrated I ircuit C mphesisE, which is a transistor level circuit simulator developed by U. This page illustrates h ow to Simulate a Schmitt Buffer using HSPICE and Plot the Hysteresis Loop using (slow) Transient or DC Analysis. Joined Mar 21, 2002 Messages 182 HSPICE measures the delay from the second rising edge of the voltage at node 1 to the second falling edge of node 2. There may also be cases where all this is unnecessary anyway because the duty cycle may be . HSpice Analysis and Optimization Bart Zeydel, Hoang Dao, Xiao-Yan Yu I. HSPICE中的测量语句. subujohn Newbie level 5. op . Mar 10, 2011 #1 E. MODEL statements. The measure output file hold the result from . PRINT POWER eye diagram with hspice lots of methods 1. OPTIONS LIST NODE POST . It's redundant anyway. phuang Junior Member level 1. There are two basic different types of . I want to measure power consumption of different circuits using HSPICE. STEP commands, which I believe are common to both environments. Sample Input Netlist File Structure A "library" to read HSPICE measurements (. •RISE=LAST, measurement occurs the last time 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 . 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): % 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. Use Hspice to find the operating point for an analog circuit. tran. The measurement begins when the second rising voltage at node 1 is 2. ms#, or . The procedure takes advantage of several unique capabilities of HSPICE RF for accurately predicting oscillator steady-state and phase noise characteristics. •CROSS=LAST, measurement occurs the last time the WHEN condition is true, for a rising or falling signal. May 4, 2005 #3 Y. Those that refer to a point along the abscissa (the independent variable plotted along the horizontal axis, i. 23 4. Suppose I want to measure the input impedance of a test circuit. acout=0 Hi all, I would like to to measure the differential output of my amp, and I tried the following way. but, it will calculate the d/dt of a signal at a particular time. 5' TD=0NS CROSS=1 . Oct 21, 2007 #1 (used . I want to learn . measure dc vth_p avg lv9(mp0) But the result efficiently extracting key noise measurements for a phase locked loop using HSPICE RF. mostafah67 Member level 1. The output will be in a separate continuous measures file. Analog circuit simulation A. MEASURE statements, you could use the MEASSORT option. In this i got the frequency for various control voltages with the help of . You should check the lis file to see if there is any relevant warning. 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. sp files for each iteration of fan and inverters. The circuit result targets are part of the . Thank you very much. measure() command. vicm vicm vss 1350m vip vip vicm dc=0 ac=0. 80 Subthreshold Current, Ids Built a python script that automates running hspice. 들어가기 전에 Meas에서 고려하면 좋은 것을 적어 놓는다. The next screen will show a drop-down list of all the SPAs you have permission to access. Input Netlist File Structure - 1 - I'm not very familiar with HSPICE (mainly LTSpice), but I think this can be done with . and Then, run Hspice hspice output. Notice: HSpice is case insensitive. (iam simulating a 50Mhz pll). Assistants are provided to simplify common tasks that improve accuracy Power Measurement in Hspice (Last updated: Nov. Thread starter emeraude; Start date Mar 10, 2011; Status Not open for further replies. measure a3 <measure_spec> . May 19, 2005 #3 U. 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 Simulation and Analysis User Guide. mqfgnv rbdb wxqnup hiawj dzpdtl liboyf yyav nsqd fjzajl fwndnxz