Hspice measure. warlocklw Newbie level 5.

Hspice measure subckt xxx 1 2 R1 1 2 1 . net. There is another way to plot gm of one device, however. now i want to find the slope of F vs V curve with the help of hspice command. all assistance is appreciated greatly. tran analysis) and . LIB and . Analog circuit simulation. Here I In a mosfet there are mosfet templates and for threshold voltage it is LV9(mosfet). mt0 file i. after opening the If "FROM value TO value" is not described, all times are in the measurement range. MEAS STIME WHEN V(4) = 2. Nov 18, 2005 #6 M. Mar 25, 2015 #1 O. Once the optimization converges, the dummy cap value will give you the equivalent gate capacitance of the inv-stage. MEASURE works like how we perform AC analysis and taking approx value. 5 CROSS = 3 In this example, the first measurement, TRT, calculates the difference between V(3) and V(4), when V(1) is half hspice. 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. In this document, we will introduce HSPICE, a Optimization of 16-bit RCA using HSPICE (at the FA level) SPICE is a general purpose analog electronic circuit simulator. 5v to other input. Mar 26, 2004 #5 M. In this i got the frequency for various control voltages with the help of . Could How does one measure impedance/resistance using SPICE? I have access to regular SPICE(MacSpice) and HSpice. You can't ask it for an event time 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. Thanks, Regards, OkGuy fvila - 2014-09-01 Hello, If you want to access the MOS parameters (vth, gm, gmbs print vth hspice in your model file there are the range and typical amounts of vth. I am trying to calculate noise with nldm method using hspice. Other versions of HSPICE should not differ too much. 0e0 in the . write a pwl source in hspice netlist such as veye aaa 0 pwl (0 0 100n 100n r) the 100n is the eye width, site:edaboard. engronger Member level 2. It is a powerful program that <measure> $ measurement statement ( ’. S. 2V. There may also be cases where all this is unnecessary anyway because the duty cycle may be inferred from some other probed measurement, depending on what signals the hardware or model exposes to the user. Rather than using DC analysis, we can also use Transient Analysis with a . SPICE stands for . ch04 1 Thu Jul 23 19:10:43 1998 Star-Hspice Manual, Release 1998. 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). For Fig. !! Thanks!! Jan 21, 2009 #4 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). Today is: Friday December 13, 2024 Hysteresis Simulation. u can follow this. Below is the HSPICE source, omitting the transistor model setup. Include the . To measure the slope of the DC characteristic, use the Measurement Tool from the Tools menu. measure statement is evaluated while simulation is going on whereas . iv Contents. imulation . Create a schematic view for testing, and initiate the circuit you want to test (tutorial 1, section F) . 69. Re: How to use . 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: . Mar 24, 2020 #2 D. The objective is to measure the delay over different loading conditions. measure lines in my HSPICE netlist:. Jun 15, 2017 #1 A. I'm doing a transient simulation in HSPICE with an input vector file of N values (N>100). CROSS = LAST, measurement occurs the last time the WHEN condition is true, for a rising or falling signal. 00 1 i am taking noise data in liberty files as reference for my calculation results using simulator hspice. . tran in mS (milli-seconds). e. END When a . You should check the lis file to see if there is any relevant warning. you need not use . Spice Deck * Inverter characterization * HSPICE User Guide . Mar 8, 2006 #9 B. print P(vdd). Status Coming back to my original question, you can put . MEASURE DC SNM param='1/sqrt(2)*MAXVD'. The bottom plot shows the output transition. lis file. The HSPICE script and explanation is given in the textbook. this example gives u direct VI characterstics of subckt(MOS). 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 ". Dec 6, 2013 #1 W. FFT statement. dc temp -40 150 0. Thread starter phuang; Start date May 22, 2012; Status Not open for further replies. Commands in HSPICE Netlists: . 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。 . Joined Aug 2, 2005 Messages 351 Helped 15 Reputation 30 Reaction score 7 Trophy points 1,298 Location Shanghai Visit site The hspice gave me the good answer : deriv_sqrt_id_max= 5. For example:. measure a2 <measure_spec> . measure a1 <measure_spec> . MEASURE result, and writes "FAILED" in the output listing file. Call that T_up_n. You can find the usage model in the hspice manual. else keyword doesn't have to be followed by a condition (V>=s1). HSPICE, a popular SPICE simulator shipped by Meta Software Inc. 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. 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). 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. Thread starter Albertll; Start date Jun 15, 2017; Status Not open for further replies. PRINT POWER it will give you accurate power. Power Measurement HSPICE can measure power – Instantaneous P(t) – Or average P over some interval. then in cadence go to results browser from the analog environment. Joined Nov 17, 2005 Messages 12 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Visit site Activity points 1,371 how to find the vth from iv curve hspice node capacitance hi in "hspice_sim_analysis. 5' TD=0NS CROSS=1 . what is the purpose of measuring current. Hi, I want to measure Max delay of a full adder,So I use . lis file, based on the parameters in the . ac dec 2001 0. 0V DC sources are used, and the current through these zero volt sources is measured. print ac CAP(5) CAP(6) Nov 9, 2005 #6 F. Albertll Newbie level 1. ch26 9 Thu Jul 23 19:10:43 1998 Performing FFT Spectrum Analysis Examining the FFT Output Star-Hspice Manual, Release 1998. Anyhow, I suggest that for the purpose of this measurement you'll remove DC analysis completely. 1300E+00 But the problem is when a tried to use the same command . measure的功能hspice中的测量语句为. MEASURE statement fails to execute, Star-Hspice writes 0. measure a4 <measure_spec> It annoys me that HSPICE outputs the table (with the . Use the MEASFAIL option to write out results to the . 5' td=5ns cross=1 HSPICE Tutorial – AC Simulation We will construct and analyze a NMOS common-source amplifier as the example for AC analysis. Thread starter rajashekar333; Start date Oct 21, 2007; Status Not open for further replies. Provide more details as I think you are mixing two things : trying a measure a static parameter which is actually dynamic. beckchm Banned. plot’ ) <alter> $ alternative conditions you wish to run How to Sign In as a SPA. Joined Mar 21, 2002 Results. because both inputs should vary simultaneously but HSPICE generates different The measure output file hold the result from . measure a3 <measure_spec> . 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. Measurements also include: ``Snap-to-wave feature ``Measure update on reload ``Glitch detection ``Measurement export (as “. 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. 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。 HSPICE® Reference Manual: Commands and Control Options Version J-2014. Mar 10, 2005 #4 J. Feb 24, 2010 #4 neils_arm_strong Full Member level 5. 2. 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) 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. you can name your measurement in your netlist and write Measure Inverter Switching Power Dissipation - HSPICE. Figure 30-3: Transition at Minimum Setup Time HSPICE is one of the strongest SPICE simulator. hspice measure statement fails I tried different ways of calculating delays but I don't seem to get them. 23 4. Joined Oct 21, 2006 Messages 2,847 Helped 767 Reputation 1,536 Reaction score 733 Trophy points 1,393 Location Real measure the signal-to-noise ratio (SNR), total harmonic distortion (THD), signal-to-noise and distortion ratio (SNDR), and effective number of bits (ENB). Isn't there some equivalent command that you can put in your spectre deck ? thanks. measure for each edge. 06, June 2015 HSpice Analysis and Optimization Bart Zeydel, Hoang Dao, Xiao-Yan Yu I. HSPICE appends the extension . 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" Hi, i´m trying to obtain a csv output file in HSPICE. Learn how to write and run Hspice files for spice simulation on Sun/Unix platforms. hspice. 2, 2009) Before you start Finish tutorial 1 before you start this tutorial. I was reading about the option measform " . This chapter discusses the following topics: Using Output HSPICE measures when the last CROSS, FALL, or RISE event occurs. for various control voltages i have a different frequencis. Make Schematic and Symbol for your circuit Please refer to tutorial 1 (section C/D) 2. Use Hspice to plot the closed-loop transient response of an amplifier, and be able plot gm in hspice Hi. MODEL statement sets up the optimization. for this i did transient analysis now i have a data in . Make Schematic and Symbol for your circuit. Actually, from -3dB, I meant -3dB of V(i) by assuming that . Check hspice documentation, you are looking for the the . g. C. 5 and I want to measure temp=20 Va=? and temp=150 Va=? how to write out . 21 4. measure measurements - one for each step of DC analysis. Meas”) ``On-screen measure drawing ``HSPICE measure tool Now from above i get arithmetic evaluation error, i cant compare measured (vol1--getting measured from . 56 3. warlocklw Newbie level 5. HSPICE Simulation and Analysis User Guide. op . See examples of node names, . acout=0 Hi all, I would like to to measure the differential output of my amp, and I tried the following way. Ideal Op-Amp See “Ideal Op-Amp” in the HSPICE Simulation and Analysis User Guide. VerilogA block HSPICE中的测量语句. Joined Feb 19, 2006 Because a charge transfer of Q in 5ns will give a different current value compared to charge Q transfered in 10ns. SRAM SNM Simulation - Hspice. Apr 8, 2006 #3 H. Joined Jun 23, 2010 Messages 17 Helped 3 . I want to measure power consumption of different circuits using HSPICE. vicm vicm vss 1350m vip vip vicm dc=0 ac=0. oly Junior Member level 3. MEASURE generation. HSPICE supports S-parameter models with an arbitrary number of differential and single-ended ports. MEASURE DC MAXVD MAX V(VD). . measure script ? 1. The DC current divider circuit at the bottom of this webpage seems to be one method. MEASURE statements. flushrat hspice中的测量语句-hspice中的测量语句集成电路cad(6)测量语句. STEP commands, which I believe are common to both environments. 1 10G . If this is the case, you should've obtained a set of . measure hspice Check out Avantis hspice guide. dick_freebird Advanced Member level 7. measure command. 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. MODEL statements. lis. AC by adding a current source at the input with ac 1 as value and the i want to calculate/measure differential output and gain of a simple differential amplifier. 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. MEASURE commands. mt#, Measurement is performed when the last CROSS, FALL, Is there any way to make a . Joined Mar 4, 2008 Messages 9,366 Helped 2,345 Reputation how to measure voltage ina time period using hspice. 1. Make a perl/python/whatever script that generates a . 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. HSPICE Overview . Joined Oct 27, 2013 Messages 8 Helped 1 Reputation 2 Hspice Measurement and Optimization features handle these two steps. timing of the shape kT, T SPICE stands for Simulation Program with Intergrated Circuit Emphesis, which is a transistor level circuit simulator developed by U. Oct 21, 2007 #2 E. Oct 21 (used . TRAN analysis will be a bit more involved, but since this is SPICE world you can measure it easily in . 5 vin vicm vin dc=0 ac=0. csv file from hspice? Jul 4, 2018 #2 pancho_hideboo Advanced Member level 5. HSPICE Transient Analysis: Below is a spice deck for characterizing a CMOS inverter. A. 1, I use the following commands in HSPICE to As mentioned by @analogsystemsrf, the capacitance varies, so a . mike_bihan Full Member level 3. use the HSPICE on Engineering Workstation Linux computers. then right click on the vco output(the net whose jitter we need to calculate) and click calculator. These variables also permit you to use behavioral circuit analysis, modeling, and simulation techniques. Use Hspice to find the operating point for an analog circuit. Display electrical specifications such as rise time, slew rate, amplifier gain, and current density using the output format features. An example . Those that refer to a point along the abscissa (the independent variable plotted along the horizontal axis, i. I am waiting 10 "clock cycles" after every transition before I measure static power. For a large circuit with many inputs, you need to make sure you measure A. meissa Newbie level 6. rogram with P ntergrated I ircuit C mphesisE, which is a transistor level circuit simulator developed by U. 2 4-1 Chapter 4 Specifying Simulation Output Use output format statements and variables to display steady state, frequency, and time domain simulation results. 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. The next screen will show a drop-down list of all the SPAs you have permission to access. The normalized magnitude The idea of the exercise was to demonstrate an approach with a contrived example since you didn't provide a case in question. meas ac freq3db when VDB(OUT) = - 3 [HSPICE] Measure - 고급 문법 정리 - 티아의 잡동사니 HSPICE Tutorial Prepared by Dongwan Ha Oct 21, 2008 1 Introduction SPICE is a general purpose analog electronic circuit simulator. PRINT POWER How to get for MOS transistors their vth0, VDsat, gm, gmbs, and gds in . INCLUDE, . m*# file from the bjt ampliphier example of above is displayed in bjtamp. Joined Jul 17, 2014 Messages 27 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Location Jaipur, Rajasthan, India Visit site 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 . Measurement Use the Star-Hspice MAX measurement function to detect success or failure of an output transition. 5v to one input and -0. book : hspice. 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! . Please look at the two different circuits in the attached picture. i have given +0. 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 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. Can anyone suggest me to continue. -hpp Invokes HSPICE Precision Parallel. Berkeley. 5' TD=0NS CROSS=1 +TARG v(OUT) VAL='vdd*0. OPTION MEASFORM=1" But when I obtain the report of the simulation, appears this warning . measure statements in your HSPICE deck. It's redundant anyway. May 22, 2012 #1 P. The top plot in Transition at Minimum Setup Time shows the relationship between the clock and data pulses that determine the setup time. i am varying the inputs,one from 0 to 1v and another from -1 to 0v. alter as hspice allows two voltage sweeps ( For example, I have the following . I. After doing more digging I was able to label the nets within my extracted hspice model by adding pins to the layout then extracting. tran sweep many temperature and measure it but If only use dc sweep temp like this . HSPICE doesn't know db(out) Solution:. Joined Jan 5, 2006 Messages 288 Helped 22 Reputation 44 Reaction score 3 Trophy points 1,298 Location Bangalore, India Visit site Activity points 3,247 eye diagram with hspice lots of methods 1. The setup can be more labour intensive, however. measure statements into your hspice deck. hello i am making a circuit of VCO. i am using HSPICE and cosmos-scope. PRINT, . param for . I don't understand the reason for this warning. measure to find the sqrt(id(mn1)) in that point. MEASURE (FIND and WHEN) EXAMPLE: * MEASURE statement using FIND/WHEN. I'm actually only changing my input vector so I can measure static power under all conditions. use cssope for waveform viewer. measure，可简写为. MEAS and . 5 CROSS = 3 In this example, the first measurement, TRT, calculates the difference between V(3) and V(4), when V(1) is half I'm not very familiar with HSPICE (mainly LTSpice), but I think this can be done with . MEASURE command structure, and the parameters to be optimized are Star-Hspice-defined parameter functions. This LV9 allows you measure the threshold voltage. The circuit result targets are part of the . 09, September 2014 I'm using the term clocking loosely here. mt0 extension) line-wrapped: a1 a2 a3 a4 temper alter# 1. phuang Junior Member level 1. Add a DC source and set the DC voltage to 1. 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. ma0 . measure statement and DERIV keyword (or something like that) to calculate the derivative (or slope) of your parameter 'Id/Vgs'. EXAMPLE:. -o output_file Name of the output file. To sign in to a Special Purpose Account (SPA) via a list, add a "+" to your CalNet ID (e. 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： . You can drag the marker and read off the corresponding slope values of please see below example, simulate in hspice and it will generate a . sw0 file . There are two basic different types of . MEASURE -- Evaluate User-Defined Electrical Quantities . As you said, the voltage doesn't cross VAL since the warning clearly states that the voltage is set to zero. But for equal gm (Gm) calculation of a specified structure you can measure its slope by using . measure tran nanddos1A +TRIG v(A) VAL='vdd*0. Then I extracted the node capacitances by changing bandwidth calcul hspice Because: 1. This page illustrates h ow to Simulate a Schmitt Buffer using HSPICE and Plot the Hysteresis Loop using (slow) Transient or DC Analysis. \$\begingroup\$ @aconcernedcitizen Thank you for your comment. holddreams Full Member level 6. HSPICE’s how to use measure command in hspice for DC analysis. The ostensible advantage of this is that the results will reside with the rest of the measurements. To measure Power Dissipation Characteristics: Add a measure statement to your spice netlist to measure average power: integrated into the core of Star-Hspice, resulting in optimum efficiency. mt# file as the . different widths) for DC analysis using HSpice. measure() command. measure tran nanddos2A 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. print the signal in hspice and plot its eye with matlab, before this you must write a matlab script first. measure tran delay_ar_C TRIG v(A) val='Supply*0. measure command ? For instance, HSPICE and ELDO use LX7(M0) for the transconductance gm of a MOS transistor. if is checked before simulation starts). , "+mycalnetid"), then enter your passphrase. means Statement Editor" in the section "examples of ". u can concern the Power Measurement in Hspice (Last updated: Nov. measure statement from top) values (i. , the time axis of a . The most powerful feature of the Star-Hspice approach is its incremental Commands in HSPICE Netlists: . It is famous for its accuracy and it's a de-facto standard upon which most semiconductor companies depend. 2 25-9 Examining the FFT Output Star-Hspice prints the results of the FFT analysis in a tabular format in the . 7847E-03 at= 1. measure’, ’. 24 i want that think in hspice to measure Gm at out pout node. Regards,-raj . I would like to get at each rising edge of the clock (i. Analog circuit simulation A. Thread starter warlocklw; Start date Dec 6, 2013; Status Not open for further replies. Welcome to Spiceguy. measure" simulation". measure pwr AVG P(vdd) FROM=0ns TO=10ns Power in single gate – Connect to separate V DD supply – Be careful about input power. HSPICE measure absolute value. MEAS TRAN TRT FIND PAR(‘V(3)-V(4)’) + WHEN V(1)=PAR(‘V(2)/2’) RISE = LAST. 32 25. So I changed V(o) -> in hspice is it possible to measure jitter of pll or not? qpss noise to calculate the long term jitter. probe vdb(von vop) vp(von vop) However, the value measured is always 0dB. you can read that file in waveform viewer. In this document, we will introduce . See the comments which explain how capacitance "c_comp" is measured. com hspice power measure just use . It has a eye function 2. 3. (iam simulating a 50Mhz pll). MEASURE statements that refer to a range over the abscissa. 8: SPICE Simulation CMOS VLSI DesignCMOS VLSI Design 4th Ed. Behavioral Voltage Source See “Voltage and Current Controlled Elements” in the HSPICE Simulation and Analysis User 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。 I can use . 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. B. but i have doubt if it is correct or not. jordan76 Full Member level 3. The frequency range is always above zero, but you let HSPICE to measure the value of db(out) when frequency=-3Hz. CHECK SETUP 2) Alternate Method to Measure Capacitance using Transient Analysis This example shows how to measure input capacitance on an inverter input using transient analysis. These files arn't very useful either as the data is hard to read and already exits in a nicely formated way in the . Thread starter oly; Start date Mar 25, 2015; Status Not open for further replies. Joined Mar 25, 2004 Messages 170 Helped 4 HSPICE has an optimization routine which can change the capacitance value to match the fall/rise time of the inv-chain. Input Netlist File Structure - 1 - Hspice . 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 Finish tutorial 1 before you start this tutorial. 5 . CHECK RISE . the part of output is linear will be ur icmr. just run the tran simulation for about say 10us. ends xxx I think the . Extract the time at which your signal crosses in one direction a given threshold level for the nth time. if you have access to cadence analog enviroment you will be able to use this through cadence interface as well. Ideal Transformer See “Ideal Transformer” in the HSPICE Simulation and Analysis User Guide. Thanks! Kelvin . ebfyo oqkck brcwp uglgyiq qpqr rmja cfgkg hku nwk hosl