"PSPICE中引入德州仪器(SI) SPICE模型方法指南"

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In the application report SLOA070 from September 2001, the author Bruce Carter discusses the utilization of Texas Instruments Spice models in the PSpice simulation program. Texas Instruments offers Spice models for operational amplifiers, but these models are provided in a generic text format. Carter's note aims to guide readers on how to efficiently import these models into PSpice, which is the most commonly used simulation program in the industry. The process of integrating Texas Instruments Spice models into PSpice involves several steps, as outlined in Carter's report. By following the instructions provided in the report, users can effectively incorporate these models into their simulations. This integration allows for the accurate representation of Texas Instruments operational amplifiers in PSpice, enabling engineers to analyze and optimize circuit designs with confidence. Overall, the incorporation of Texas Instruments Spice models in PSpice is a valuable resource for designers and engineers working with operational amplifiers. It ensures that simulations are reliable and realistic, leading to improved performance and efficiency in circuit design. Carter's report serves as a useful guide for individuals seeking to leverage the benefits of Texas Instruments Spice models within the PSpice environment.

Application Report

SLOA070 – September 2001

Using Texas Instruments Spice Models in PSpice

Bruce Carter

ABSTRACT

Texas Instruments provides Spice models for operational amplifiers. These Spice models,

however, are in a generic text format. This note describes how to take these models and

import them into the most widely used simulation program—PSpice

™

Contents

1 Introduction .................................................................................................................................. 2

2 Obtaining the Spice Model .......................................................................................................... 2

3 Create a PSpice Model................................................................................................................. 4

4 Edit the Part Symbol .................................................................................................................... 5

5 Simulating With the Part Symbol ................................................................................................ 7

5.1 Creating a Simulation Profile............................................................................................... 8

5.2 Drawing the Schematic ...................................................................................................... 10

5.3 Displaying the Simulation Results .................................................................................... 11

6 Conclusions................................................................................................................................ 12

7 Appendix A: Example Spice Model........................................................................................... 13

List of Figures

1 Searching for a Part on the Texas Instruments Home Page ....................................................................... 2

2 Search Results ................................................................................................................................................. 2

3 Technical Documentation Box ....................................................................................................................... 3

4 Spice Model Link.............................................................................................................................................. 3

5 Example of How to Download File to Disk .................................................................................................... 3

6 PSpice Model Editor Icon ................................................................................................................................ 4

7 Suggested Storage Location for New Library............................................................................................... 4

8 Creating an OrCad Capture Library ...............................................................................................................4

9 Status File Created by a Good Spice Model.................................................................................................. 5

10 OrCad Capture Icon ......................................................................................................................................... 5

11 Library Editing Window ................................................................................................................................... 5

12 Raw Part Symbol.............................................................................................................................................. 6

13 Pin Number Assignments for the THS4131................................................................................................... 6

14 Progressive Steps in Making Part Symbol .................................................................................................... 7

15 Creating a New Project .................................................................................................................................... 8

16 Creating a New Simulation Profile ................................................................................................................. 8

17 Simulation Type and Frequency Settings ..................................................................................................... 9

18 Adding the Library to the Simulation Profile................................................................................................. 9

19 Adding the New Library to Capture.............................................................................................................. 10

20 Example PSpice Schematic .......................................................................................................................... 11

21 Simulation Results......................................................................................................................................... 12

PSpice is a trademark of Cadence.

All other trademarks are the property of their respective owners.

ZHCA088

在

PSpice

中使用德州仪器的

Spice

模型

一个快速的检查表明，它本质上是一个

.cir

文件——这是

PSpice

过去遗留下来的。本文档将介绍如何创建一个

PSpice

符号。

PSpice

是一个使用最广泛的仿真程序，但这些技术在许多

CAD

程序中都比较类似，因此希望本应

用报告也能为那些使用其他仿真程序的设计师提供一些一般性的指导。

创建一个

PSpice

模型

打开

PSpice

模型编辑器（不是捕获程序）。模型编辑器的图标如图

所示：

图

6. PSpice

模型编辑器图标

程序打开以后，选择

File

，然后选择

New

。

下一步选择

Model

，

Import

，然后选择模型的文件名。

ASCII

文本文件将出现在右侧的窗口中，而左侧的窗口将显

示模型名称为

THS4131

，类型是

SUBCKT

。

接下来点击

File

，

Save

，并给它取一个文件名。

建议

：使用与元件名称相同的库名，因为它有可能是唯一需要创建的元件。

建议

：将它保存在

UserLib

文件夹中：

•

图

新建库的建议存储位置

接下来，点击

File

，

Create Capture Parts

。此时将出现一个对话框。浏览并将路径指向新建库的存储位置并选择

它。此时位于底部的编辑框中也将自动填充相同的文件名和相同路径，并具有

.olb

扩展名。

图

创建一个

OrCad Capture

库

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