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